ALL

Comprehensive Question Bank & Study Notes

Quick Revision Notes

NEET UG Re-Exam Analysis

NEET UG Re-Exam Analysis

The NEET UG Re-exam was widely rated as moderate to slightly difficult overall. The general consensus among students and coaching experts is that it was noticeably more demanding and lengthier than the original paper, primarily due to a heavy calculation load in the Physics and Chemistry sections.

Physics (Toughest & Lengthiest)

Difficulty: Medium to Hard.

Analysis: The section leaned heavily on conceptual, application-driven, and multi-step numerical questions. Very few questions could be solved by just plugging numbers into a formula.

Key Areas: Mechanics, Electrodynamics, Modern Physics, and Thermodynamics dominated the paper. Students reported that the calculation load felt closer to JEE-level conceptual thinking in certain areas.

Chemistry (Moderate to Difficult)

Difficulty: Medium to Hard.

Analysis: Chemistry didn't play it as safe as in some past years, demanding real command over mechanisms rather than simple recall. Physical Chemistry was the main time-sink, featuring long, calculation-intensive numericals. Organic Chemistry focused heavily on reaction mechanisms and applications. Even Inorganic Chemistry, typically the fastest section, included several assertion-reasoning and statement-based questions designed to test deep NCERT comprehension.

Key Areas: Coordination Compounds, Organic Reactions, and Thermodynamics saw significant weightage.

Biology (Easiest & Most Scoring)

Difficulty: Easy to Moderate.

Analysis: Biology provided a reliable, high-scoring zone for well-prepared students. Both Botany and Zoology stayed strictly anchored to the NCERT curriculum. Most questions were factual, direct, and diagram-based, sparing students the analytical traps seen in the other subjects.

Key Areas: Genetics, Human Physiology, Plant Physiology, Reproduction, and Ecology carried the heaviest weightage.

The Takeaway: The re-exam heavily rewarded conceptual clarity and strict time management over last-minute cramming. Because Physics and Chemistry demanded so much extra time, many experts predict this could force a slight downward correction in the overall cutoffs compared to earlier projections.

Multiple Choice Questions

1 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2081
Given below are two statements:
Statement I: Down's syndrome is caused by the absence of one of the X-chromosomes.
Statement II: Turner's syndrome is caused by the presence of an additional copy of the chromosomes.
In the light of the above statements, choose the correct answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
MEDIUM
2 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2080
During PCR, primers bind to the DNA strands in the ______ step.
(A) ligation
(B) denaturation
(C) extension
(D) annealing
EASY
3 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2079
Which of the following are secondary lymphoid organs?
(a) Bone marrow
(b) Tonsils
(c) Spleen
(d) Thymus
Choose the correct answer from the options given below:
(A) (a) and (d) only
(B) (a) and (b) only
(C) (b) and (c) only
(D) (b) and (d) only
EASY
4 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2078
Match List-I with List-II.
List-I:
(A) Excess growth hormone
(B) Luteinizing hormone
(C) Vasopressin
(D) Oxytocin
List-II:
(I) Reabsorption of water and electrolytes in kidney
(II) Contraction of uterus during child birth
(III) Acromegaly
(IV) Ovulation
Choose the correct answer from the options given below:
(A) A-IV, B-III, C-I, D-II
(B) A-III, B-IV, C-II, D-I
(C) A-III, B-IV, C-I, D-II
(D) A-II, B-IV, C-I, D-III
EASY
5 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2077
Which of the following statements are Correct?
(a) Energy flow from producers to consumers is unidirectional
(b) Energy pyramid can never be inverted
(c) Transfer of energy follows the 1% law
Choose the correct answer from the options given below :
(A) (b) and (c) only
(B) (a), (b) and (c)
(C) (a) and (b) only
(D) (a) and (c) only
MEDIUM
6 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2076
Natural selection can lead to
(a) stabilisation
(b) genetic drift
(c) directional change
(d) disruption
Choose the correct answer from the options given below :
(A) (a) and (c) only
(B) (a) only
(C) (a), (c) and (d) only
(D) (a), (b), (c) and (d)
MEDIUM
7 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2075
How many theca are present in each lobe of a typical bilobed angiosperm anther?
(A) 12
(B) 2
(C) 6
(D) 8
EASY
8 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2074
Given below are two statements:
Statement I: Plasmids are autonomously replicating DNA.
Statement II: Plasmids are extrachromosomal DNA.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
EASY
9 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2073
Which of the following enzymes synthesizes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA)?
(A) DNA polymerase
(B) RNA polymerase I
(C) RNA polymerase II
(D) RNA polymerase III
EASY
10 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2072
If the diploid chromosome number of typical angiosperm is 36, what would be the chromosome number in its endosperm?
(A) 72
(B) 18
(C) 36
(D) 54
EASY
11 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2071
Match List-I with List-II.
List-I:
A. Both species are harmed
B. One species is harmed and the other is benefited
C. Both species are benefited
D. One is benefited while the other has no effect
List-II:
I. Predation
II. Mutualism
III. Competition
IV. Commensalism
Choose the correct answer from the options given below:
(A) A-III, B-I, C-II, D-IV
(B) A-III, B-IV, C-II, D-I
(C) A-I, B-II, C-III, D-IV
(D) A-II, B-I, C-IV, D-III
EASY
12 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2070
Which of the following is the correct order of arrangement of vertebrate column from the head to toe?
(A) Cervical vertebra, thoracic vertebra, lumbar vertebra, sacrum
(B) Cervical vertebra, thoracic vertebra, sacrum, lumbar vertebra
(C) Sacrum, lumbar vertebra, thoracic vertebra, cervical vertebra
(D) Cervical vertebra, lumbar vertebra, thoracic vertebra, sacrum
EASY
13 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2069
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The logistic growth model of populations is considered more realistic than the exponential growth model.
Reason R: Resources are finite.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct but R is not the correct explanation of A
(D) A is correct but R is not correct
MEDIUM
14 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2068
Which of the following statements about the reabsorption process in Henle's loop are correct?
(a) The descending limb of Henle's loop is permeable to water but almost impermeable to electrolytes.
(b) Urine gets concentrated in Henle's loop.
(c) Reabsorption of $Na^{+}$ and water takes place in Henle's loop.
(d) Active or passive transport of electrolytes occurs in the ascending limb of Henle's loop.
Choose the correct answer from the options given below:
(A) (a), (b) and (d) only
(B) (a) and (b) only
(C) (b), (c) and (d) only
(D) (a), (b) and (c) only
MEDIUM
15 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2067
Which of the following are primary consumers in a food chain?
(A) Carnivores
(B) Parasites
(C) Predators
(D) Herbivores
EASY
16 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2066
Which of the following statements is correct about Plasmodium?
(A) Fertilization takes place in mosquito gut
(B) Reproduces sexually in liver cells
(C) Reproduces sexually in RBCs
(D) Gametocytes develop in mosquito gut
MEDIUM
17 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2065
Which of the following hormone is not secreted by human placenta?
(A) LH
(B) hCG
(C) Estrogen
(D) Progesterone
EASY
18 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2064
Muscle contraction is initiated by a signal sent by the central nervous system by the release of
(A) cyclic adenine monophosphate
(B) acetyl choline
(C) acetyl coenzyme A
(D) cyclic guanine monophosphate
EASY
19 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2063
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Forelimbs of human and bats are homologous.
Reason R: Forelimbs of humans and bats have similar anatomical structure.
In the light of the above statements, choose the most appropriate answer from the options given below.
(A) A is false but R is true
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are true, but R is not the correct explanation of A
(D) A is true but R is false
MEDIUM
20 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2062
Consider a population of 10 million cells. Given the per-capita birth rate of 0.002 (per unit time) and the per-capita death rate of 0.002 (per unit time), the expected number of cells after 10 generations is
(A) 100 million
(B) 1 million
(C) 5 million
(D) 10 million
EASY
21 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2061
Sperm motility is due to
(A) muscular movement
(B) flagellar movement
(C) ciliary movement
(D) amoeboid movement
EASY
22 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2060
A population of diploid organisms is at Hardy-Weinberg equilibrium. If the frequency of allele A is 0.1, the frequency of AA is
(A) 0.99
(B) 0.01
(C) 0.02
(D) 0.1
EASY
23 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2059
Match List-I with List-II.
List-I:
A. Transformation
B. Cloning site
C. Selection
D. Ori
List-II:
I. Restriction enzyme
II. Transfer DNA to host bacteria
III. Replication
IV. Antibiotic
Choose the correct answer from the options given below:
(A) A-IV, B-I, C-III, D-II
(B) A-II, B-I, C-IV, D-III
(C) A-I, B-II, C-IV, D-III
(D) A-III, B-IV, C-II, D-I
MEDIUM
24 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2058
Which of the following statements about lac-operon is correct?
(A) Galactose can act as an inducer of lac operon
(B) Gene i is constitutively expressed
(C) Lactose activates repressor to bind to the operator
(D) Genes i, z, y and a share single common promoter
MEDIUM
25 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2057
Which of the following disease is not sexually transmitted?
(A) Genital warts
(B) Syphilis
(C) Tuberculosis
(D) Gonorrhoea
EASY
26 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2056
Which of the following in female gametophyte of an angiosperm helps in guiding the pollen tube for fertilizing the eggs?
(A) Polar nucleus
(B) Antipodals
(C) Synergids
(D) Central cells
EASY
27 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2055
Colostrum, secreted by mother during initial days of lactation, is abundant in
(A) IgD
(B) IgG
(C) IgM
(D) IgA
EASY
28 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2054
The inactive form of Bt toxin is converted to the active form in the insect gut
(A) by nucleases
(B) due to alkaline pH
(C) due to acidic pH
(D) by proteases
EASY
29 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2053
Which of the following is not evidence for evolution?
(A) Divergent evolution of anatomical structures such as forelimbs
(B) Convergent evolution of traits like wings of birds and butterflies
(C) Paleontological evidence from fossil records
(D) Embryological support for evolution as proposed by Ernst Heckel
MEDIUM
30 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2052
The opening between the right atrium and the right ventricle is guarded by
(A) sino-atrial node
(B) bicuspid valve
(C) tricuspid valve
(D) semilunar valve
EASY
31 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2051
Given below are two statements:
Statement I: Ovulation is caused by LH surge leading to rupture of Graafian follicles.
Statement II: Graafian follicle remaining after ovulation transform into corpus luteum and secretes large amount of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
MEDIUM
32 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2050
Which of the following struture is not a part of the male reproductive system?
(A) Infundibulum
(B) Rete testis
(C) Epididymis
(D) Vasa efferentia
EASY
33 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2049
Which of the following is used as a clot buster?
(A) Statins
(B) Streptokinase
(C) Penicillin
(D) Cyclosporin A
EASY
34 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2048
The covering of ovum at ovulation is
(A) chorion
(B) endometrium
(C) zona radiata
(D) zona pellucida
EASY
35 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2047
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced.
Reason R: Goats were more efficient at browsing than Abingdon tortoise.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct but R is not the correct explanation of A
(D) A is correct but R is not correct
MEDIUM
36 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2046
Which of the following plant produces non-albuminous seeds?
(A) Pea
(B) Wheat
(C) Maize
(D) Barley
EASY
37 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2045
Which of the following is used as an effective sedative and painkiller for treating post-surgery patients?
(A) Anti-retroviral drugs
(B) Interferon
(C) Antibiotics
(D) Morphine
EASY
38 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2044
Given below are two statements:
Statement I: Modern Homo sapiens arose in Australia and moved across continents.
Statement II: Homo sapiens arose around 75000 to 10000 years ago.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
MEDIUM
39 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2043
For a person with blood group 'O', which of the following is not a possible combination of parents' blood group genotypes?
(A) Father: $I^{A}I^{A}$ and Mother: $I^{A}i$
(B) Father: $I^{A}i$ and Mother: $I^{B}i$
(C) Father: $I^{A}i$ and Mother: $I^{A}i$
(D) Father: $I^{B}i$ and Mother: $I^{B}i$
MEDIUM
40 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2042
Sponges exchange $O_{2}$ with $CO_{2}$ by
(A) gills
(B) simple diffusion over their entire body surfaces
(C) moist cuticle
(D) tracheal tubes
EASY
41 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2041
Arrange the following in descending order of number of species in the Amazonian rain forest.
(a) Plants
(b) Birds
(c) Fishes
(d) Invertebrates
(e) Mammals
Choose the correct answer from the options given below:
(A) (b) > (a) > (d) > (c) > (e)
(B) (c) > (b) > (d) > (e) > (a)
(C) (d) > (a) > (c) > (b) > (e)
(D) (e) > (b) > (a) > (c) > (d)
MEDIUM
42 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2040
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: In an experiment, Mendel observed that the F1 progeny plants are all tall and none are dwarf.
Reason R: Stem height is a contrasting trait, with tall being dominant and dwarf being recessive.
In the light of the above statements, choose the most appropriate answer from the options given below :
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct but R is not the correct explanation of A
(D) A is correct but R is not correct
EASY
43 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2039
Adaptive radiation in placental mammals and Australian Marsupials leading to similarity between distant species is an example of
(A) genetic drift
(B) divergent evolution
(C) convergent evolution
(D) founder effect
MEDIUM
44 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2038
The method of directly of injecting a sperm into ovum in assisted reproductive technology is called:
(A) Embryo transfer (ET)
(B) Gamete intra fallopian transfer (GIFT)
(C) Zygote intra fallopian transfer (ZIFT)
(D) Intra cytoplasmic sperm injection (ICSI)
EASY
45 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2037
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: In recombinant DNA technology, lysozyme is used for disrupting bacterial cells while cellulase is for plant cells.
Reason R: Isolation of genetic material needs disruption of cells.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct but R is not the correct explanation of A
(D) A is correct but R is not correct
MEDIUM
46 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2036
In frogs, the number of pairs of cranial nerves arising from the brain are
(A) 12
(B) 6
(C) 9
(D) 10
EASY
47 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2035
The correct sequence of adult cell cycle phases is
(A) S-M-G2-G1
(B) G1-G2-S-M
(C) G1-M-G2-S
(D) G1-S-G2-M
EASY
48 Competency ANALYZE MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2034
Given below are two statements:
Statement I: When any plane passing through the central axis of the body divides the organism into two identical halves, it is called radial symmetry.
Statement II: In phylum Echinodermata, both adults and larvae are radially symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
MEDIUM
49 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2033
Which of the following are characteristic features of Solanaceae family?
(a) Flowers are bisexual and actinomorphic
(b) Calyx have five sepals and are united
(c) Androecium have five stamens and are epipetalous
(d) Ovary is inferior
Choose the correct answer from the options given below:
(A) (b), (c) and (d) only
(B) (a), (b) and (c) only
(C) (d) only
(D) (a) and (b) only
MEDIUM
50 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2032
Which one of the following statements is incorrect?
(A) $\beta$-cells of pancreas secrete insulin
(B) $\alpha$-cells of pancreas secrete glucagon
(C) $\alpha$-cells of pancreas secrete insulin
(D) Glucagon stimulates glycogenolysis
EASY
51 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2031
Arrange the following elements in descending order of their contribution percentage weight of the human body.
(a) Oxygen
(b) Carbon
(c) Hydrogen
(d) Nitrogen
Choose the correct answer from the options given below:
(A) (b), (a), (c), (d)
(B) (a), (b), (c), (d)
(C) (c), (a), (b), (d)
(D) (b), (c), (d), (a)
EASY
52 Knowledge UNDERSTAND MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2030
Which of the following is not a prokaryote?
(A) Fungi
(B) Bacteria
(C) Blue green algae
(D) Mycoplasma
EASY
53 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2029
Symbiotic association between fungi and algae are called
(A) chrysophytes
(B) lichens
(C) sponges
(D) mycorrhiza
EASY
54 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2028
Match List-I with List-II.
List-I:
A. Marginal placentation
B. Axile placentation
C. Parietal placentation
D. Free central placentation
List-II:
I. Argemone
II. Tomato
III. Primrose
IV. Pea
Choose the correct answer from the options given below:
(A) A-IV, B-II, C-I, D-III
(B) A-II, B-IV, C-I, D-III
(C) A-IV, B-II, C-III, D-I
(D) A-IV, B-III, C-I, D-II
MEDIUM
55 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2027
Given below are two statements:
Statement I: Chromosomes are fully condensed at the end of prophase I.
Statement II: Meiosis I resembles mitosis.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect, but Statement II is true
(B) Both Statement I and Statement II are true
(C) Both Statement I and Statement II are false
(D) Statement I is correct, but Statement II is false
MEDIUM
56 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2026
Which of the following is not a part of human central neural system?
(A) Pericardium
(B) Arachnoid
(C) Dura mater
(D) Pia mater
EASY
57 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2025
Match List-I with List-II.
List-I:
A. Family
B. Genus
C. Class
D. Phylum
E. Order
List-II:
I. Sapindales
II. Dicotyledonae
III. Anacardiaceae
IV. Angiospermae
V. Mangifera
Choose the correct answer from the options given below :
(A) A-III, B-V, C-II, D-IV, E-I
(B) A-I, B-V, C-II, D-IV, E-III
(C) A-II, B-I, C-III, D-IV, E-V
(D) A-II, B-III, C-V, D-I, E-IV
EASY
58 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2024
The number of action potentials generated by sino-atrial node (SAN) in a healthy human is per minute.
(A) 120-140
(B) 28-30
(C) 70-75
(D) 100-110
EASY
59 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2023
Match List-I with List-II.
List-I:
A. Spherical
B. Rod
C. Comma
D. Spirillum
List-II:
I. Vibrio
II. Cocci
III. Bacilli
IV. Spirilla
Choose the correct answer from the options given below:
(A) A-II, B-IV, C-I, D-III
(B) A-I, B-III, C-II, D-IV
(C) A-III, B-II, C-I, D-IV
(D) A-II, B-I, C-IV, D-III
EASY
60 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2022
Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the $7^{th}$ day?
(A) 460 cm
(B) 50 cm
(C) 170 cm
(D) 230 cm
EASY
61 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2021
Endomembrane system includes
(A) Golgi complex, chloroplast, peroxisomes and vacuole
(B) endoplasmic reticulum, Golgi complex, lysosomes and vacuole
(C) endoplasmic reticulum, chloroplast, peroxisomes and vacuole
(D) mitochondria, chloroplast, peroxisomes and vacuole
EASY
62 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2020
The number of vertebrae in a human is
(A) 206
(B) 7
(C) 12
(D) 26
EASY
63 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2019
Match List-I with List-II.
List-I:
A. Starch
B. Antibody
C. Concanavalin A
D. Glut-4
List-II:
I. Fights infection
II. Energy storage
III. Glucose transport
IV. Lectin
Choose the correct answer from the options given below:
(A) A-I, B-II, C-III, D-IV
(B) A-I, B-II, C-IV, D-III
(C) A-II, B-I, C-IV, D-III
(D) A-II, B-I, C-III, D-IV
EASY
64 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2018
Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants.
(A) Production of glucose $\rightarrow$ role of air $\rightarrow$ release of oxygen $\rightarrow$ absorption spectra of chlorophyll a and b
(B) Absorption spectra of chlorophyll a and b $\rightarrow$ production of glucose $\rightarrow$ release of oxygen $\rightarrow$ role of air
(C) Role of air $\rightarrow$ release of oxygen $\rightarrow$ production of glucose $\rightarrow$ absorption spectra of chlorophyll a and b
(D) Release of oxygen $\rightarrow$ production of glucose $\rightarrow$ absorption spectra of chlorophyll a and b $\rightarrow$ role of air
MEDIUM
65 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2017
Arrange the following taxonomic categories in ascending order. (a) Genus (b) Class (c) Order (d) Phylum (e) Family (f) Kingdom (g) Species. Choose the correct answer from the options given below:
(A) (f), (c), (b), (g), (d), (e), (a)
(B) (g), (a), (e), (c), (b), (d), (f)
(C) (a), (c), (d), (g), (f), (b), (e)
(D) (g), (c), (d), (b), (e), (a), (f)
EASY
66 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2016
Which of the following statements is incorrect?
(A) Fibrinogen is produced from fibrin
(B) Blood coagulates in response to an injury
(C) Blood clot consists of fibrins
(D) Fibrin is produced from fibrinogen
EASY
67 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2015
Which of the following statements regarding photorespiration are correct? (a) Do not occur in $C_{3}$ plants (b) $CO_{2}$ is consumed and $O_{2}$ is generated (c) Phosphoglycolate is formed (d) No synthesis of ATP and NADPH. Choose the correct answer from the options given below:
(A) (a) and (b) only
(B) (a) and (d) only
(C) (c) and (d) only
(D) (b) and (d) only
MEDIUM
68 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2014
Which of the following statements related to pituitary gland are correct? (a) It is divided anatomically into adenohypophysis and neurohypophysis (b) It secretes follicle stimulating hormone (c) It secretes melanocyte stimulating hormone (d) It does not secrete prolactin. Choose the correct answer from the options given below
(A) (b) and (c) only
(B) (a) and (b) only
(C) (a), (b) and (c) only
(D) (c) and (d) only
MEDIUM
69 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2013
Match List-I with List-II.
List-I:
A. Cristae
B. Cisternae
C. Thylakoids
D. Phospholipid
List-II:
I. Flat membrane sacs in stroma of chloroplast
II. Infoldings in mitochondria
III. Cell membrane
IV. Disc shaped sacs in the Golgi apparatus
Choose the correct answer from the options given below:
(A) A-IV, B-III, C-I, D-II
(B) A-III, B-IV, C-I, D-II
(C) A-II, B-IV, C-I, D-III
(D) A-II, B-IV, C-III, D-I
EASY
70 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2012
Which of the following are characteristics of prokaryotic cells? (a) Ribosomes are made of 50S and 30S subunits (b) They can have plasmids (c) They contain mesosome (d) They have peroxisomes. Choose the correct answer from the options given below:
(A) (a), (b) and (c) only
(B) (b) and (c) only
(C) (a) and (c) only
(D) (a), (c) and (d) only
MEDIUM
71 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2011
Smooth endoplasmic reticulum
(A) is a site for the synthesis of carbohydrates
(B) has ribosomes attached to its surface
(C) is the major site for the synthesis of lipids
(D) is actively involved in protein synthesis
EASY
72 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2010
Which of the following is not a characteristic of chordates?
(A) Presence of post anal part (tail)
(B) Presence of notochord
(C) Central nervous system is dorsal
(D) Absence of gills
EASY
73 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2009
In water, frogs respire using
(A) trachea
(B) skin
(C) buccal cavity
(D) lungs
EASY
74 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2008
The plastid that stores xanthophyll is known as
(A) amyloplast
(B) chloroplast
(C) chromoplast
(D) aleuroplast
EASY
75 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2007
Genus represents
(A) a group of closely related families
(B) an individual plant or animal
(C) a population of plants and animals
(D) a group of closely related species
EASY
76 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2006
Which of the following plant growth regulators is used as herbicide?
(A) Gibberellin
(B) 2, 4-D
(C) Kinetin
(D) Abscisic acid
EASY
77 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2005
Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans?
(A) Femur-tarsal-patella-tibia
(B) Femur-tibia-patella-tarsal
(C) Patella-femur-tibia-tarsal
(D) Femur-patella-tibia-tarsal
EASY
78 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2004
Sphenopsida class belongs to
(A) pteridophytes
(B) bryophytes
(C) angiosperms
(D) gymnosperms
EASY
79 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2003
Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700)?
(A) Carotenoids
(B) Chlorophyll b
(C) Chlorophyll a
(D) Xanthophylls
EASY
80 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2002
Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?
(A) Ethephon
(B) Abscisic acid
(C) Gibberellin
(D) Indole butyric acid
EASY
81 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2001
Cell theory was formulated by
(A) Antonie Von Leeuwenhoek
(B) Schleiden and Schwann
(C) Robert Brown
(D) Singer and Nicolson
EASY
82 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#2000
Mad cow disease is caused by
(A) Mycoplasma sp.
(B) prions
(C) viroids
(D) Aspergillus sp.
EASY
83 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1999
Phyllotaxy is the pattern of arrangement of
(A) sepals
(B) leaves
(C) flowers
(D) fruits
EASY
84 Knowledge UNDERSTAND MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1998
Mitochondrial inner membrane encloses
(A) aqueous humor
(B) matrix
(C) cytosol
(D) mucus
EASY
85 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1997
Match List-I with List-II.
List-I:
A. Fusion of protoplasms between gametes
B. Fusion of two nuclei
C. Generation of haploid spores
List-II:
I. Meiosis
II. Plasmogamy
III. Karyogamy
Choose the correct answer from the options given below:
(A) A-I, B-III, C-II
(B) A-II, B-III, C-I
(C) A-II, B-I, C-III
(D) A-III, B-II, C-I
EASY
86 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1996
How many molecules of pyruvic acid are produced at the end of glycolysis from 206 molecules of glucose?
(A) 412
(B) 206
(C) 309
(D) 103
EASY
87 Knowledge UNDERSTAND MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1995
Given below are two statements: Statement I: In gymnosperms, the male and female gametophytes remain within the sporangia. Statement II: In gymnosperms, seeds are not covered. In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
EASY
88 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1994
Photorespiration reaction catalyzed by RuBisCo is shown below: RuBP + $O_{2}$ $\rightarrow$ 3-Phosphoglycerate + X. Identify "X" from the given options
(A) Malate
(B) Phosphoenolpyruvate
(C) 2-Phosphoglycolate
(D) Oxaloacetate
EASY
89 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1993
How many turns of Calvin cycle are required for the formation of three molecules of glucose?
(A) 18
(B) 6
(C) 3
(D) 1
MEDIUM
90 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1992
Given below are two statements: Statement I: The class name Reptilia refers to creeping or crawling mode of locomotion. Statement II: All organisms belonging to Reptilia have three chambered heart. In the light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
MEDIUM
91 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1991
For the following reaction sequence, choose the correct option.
(A) Both P and Q are carbonyl compounds
(B) If P is the sodium salt of a carboxylic acid, Q is a primary alcohol
(C) P and Q are aromatic compounds
(D) If P gives a carboxylic acid on acidification, Q gives a poisonous gas on exposure to air and light
MEDIUM
92 Knowledge UNDERSTAND MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1990
Match the vitamins in List I with their sources in List II
List I:
A. vitamin A
B. vitamin $B_{12}$
C. vitamin E
D. vitamin K
List II:
I. meat
II. sunflower oil
III. green leafy vegetables
IV. carrots
Choose the correct answer from the options given below.
(A) A-III, B-I, C-IV, D-II
(B) A-II, B-III, C-IV, D-I
(C) A-IV, B-I, C-II, D-III
(D) A-IV, B-II, C-I, D-III
EASY
93 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1989
Match the species in List-I with their geometry in List-II.
List-I:
A. $PCl_{5}$
B. $BrF_{5}$
C. $BF_{4}^{-}$
D. $[Ni(CN)_{4}]^{2-}$
List-II:
I. Tetrahedral
II. Square Planar
III. Trigonal bipyramidal
IV. Square pyramidal
Choose the correct answer from the options given below:
(A) A-III, B-II, C-I, D-IV
(B) A-IV, B-III, C-I, D-II
(C) A-III, B-IV, C-I, D-II
(D) A-III, B-I, C-II, D-IV
MEDIUM
94 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1988
The highest occupied molecular orbital for $Ne_{2}$ is
(A) $\sigma_{2p}^{*}$
(B) $\pi_{2p}$
(C) $\sigma_{2p}$
(D) $\pi_{2p}$
MEDIUM
95 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1987
Consider the following reaction sequences and choose the correct option.
(A) M and N are stereoisomers
(B) K and L are geometrical isomers
(C) K and L are enantiomers
(D) M and N are geometrical isomers
MEDIUM
96 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1986
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The first ionization enthalpy of O is lower than that of N and F. Reason R: The loss of an electron from O leads to stable half-filled p orbital. In light of the above statements, choose the most appropriate answer from the options given below:
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct and R is NOT the correct explanation of A
(D) A is correct but R is not correct.
MEDIUM
97 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1985
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Generally, 3d transition metals have high melting points. Reason R: Involvement of 3d-electrons in addition to 3s-electrons in the interatomic metallic bonding. In light of the above statements, choose the most appropriate answer from the options given below:
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct and R is NOT the correct explanation of A
(D) A is correct but R is not correct.
MEDIUM
98 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1984
A protein undergoes reversible thermal denaturation from its initial state N to denatured state D according to $N \rightleftharpoons D$. At $60^{\circ}C$, the concentrations of both N and D are equal at equilibrium, and the standard enthalpy change of denaturation is $666~kJ~mol^{-1}$. The standard entropy change ($\Delta S^{\circ}$ in $kJ~K^{-1}~mol^{-1}$) of the protein upon denaturation at $60^{\circ}C$ is closest to
(A) 11.1
(B) 2
(C) 2000
(D) 333
MEDIUM
99 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1983
Among the species given below, the spin-only magnetic moment is highest for (Given: Atomic number of $Ti=22$, $Mn=25$, $Fe=26$ and $Co=27$)
(A) $[Ti(H_{2}O)_{6}]^{3+}$
(B) $[Mn(CN)_{6}]^{3-}$
(C) $[Fe(CN)_{6}]^{3-}$
(D) $[Co(NH_{3})_{6}]^{3+}$
MEDIUM
100 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1982
Assertion A: For an ideal solution formed by mixing liquids P and Q, $\Delta_{mix}H=0$ and $\Delta_{mix}V=0$. Reason R: No interactions occur between P and Q. In the light of the above statements, choose the most appropriate answer from the options given below.
(A) A is not correct but R is correct
(B) Both A and R are correct and R is the correct explanation of A
(C) Both A and R are correct but R is NOT the correct explanation of A
(D) A is correct but R is not correct
MEDIUM
101 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1981
Consider the reversible processes for 1.0 mol of an ideal gas as shown in the figure. $W_{1}$, $W_{2}$, $W_{3}$ and $W_{4}$ represent work done (in calories) in the processes 1, 2, 3 and 4, respectively; $\Delta U_{2}$ and $\Delta U_{4}$ are changes in the internal energy for the processes 2 and 4, respectively. [use $R=2~cal~K^{-1}~mol^{-1}$] The correct option is
(A) $W_{1}+W_{2}+W_{3}+W_{4}=0$
(B) $W_{1}+W_{3}=-2T_{1}\ln\frac{V_{2}}{V_{1}}-2T_{2}\ln\frac{V_{4}}{V_{3}}$
(C) $W_{2}+W_{4}=\Delta U_{2}-\Delta U_{4}$
(D) $W_{1}+W_{2}=2T_{1}\ln\frac{V_{2}}{V_{1}}$
EASY
102 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1980
The correct decreasing order of oxidation state of the underlined atom in each molecule is
(A) $\underline{P}_{4}O_{6}>\underline{Cl}_{2}O_{7}>\underline{Al}H_{3}$
(B) $\underline{P}_{4}O_{10}>\underline{S}O_{3}>H_{2}\underline{O}$
(C) $\underline{N}_{2}O_{5}>\underline{Al}_{2}O_{3}>H_{2}\underline{S}$
(D) $\underline{Pb}O_{2}>\underline{N}_{2}O_{3}>\underline{S}O_{3}$
MEDIUM
103 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1979
The correct order of solubility of the given salts in water at 298 K is: Salt | $K_{sp}$ at 298 K: AgBr | $5.0\times10^{-13}$, $Zn(OH)_{2}$ | $1.0\times10^{-15}$, $Hg_{2}Cl_{2}$ | $1.3\times10^{-18}$
(A) $Zn(OH)_{2}>AgBr>Hg_{2}Cl_{2}$
(B) $Hg_{2}Cl_{2}>Zn(OH)_{2}>AgBr$
(C) $AgBr>Zn(OH)_{2}>Hg_{2}Cl_{2}$
(D) $Hg_{2}Cl_{2}>AgBr>Zn(OH)_{2}$
HARD
104 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1978
$2A\rightarrow B$ is a zero-order reaction, where $k=1.0~mol~L^{-1}min^{-1}$. If the initial concentration of A is 2 M, then the time taken to complete 75% of the reaction will be
(A) 2.0 min
(B) 1.5 min
(C) 0.75 min
(D) 1.0 min
MEDIUM
105 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1977
Among the following, the compound having conjugated double bonds is
(A) hepta-1,6-diene
(B) hepta-1,3-diene
(C) hepta-1,4-diene
(D) hepta-1,5-diene
MEDIUM
106 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1976
The correct statement is
(A) Aluminium has five valence orbitals.
(B) Boron has a maximum covalency of four.
(C) Beryllium has three valence orbitals.
(D) Magnesium has a maximum covalency of four.
MEDIUM
107 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1975
In an acidic medium, 10 mL of 0.25 M oxalic acid is titrated with $KMnO_{4}$ solution. If the volume of $KMnO_{4}$ solution required to reach end point is 10 mL, the strength of the $KMnO_{4}$ solution is
(A) 0.15 M
(B) 0.10 M
(C) 0.20 M
(D) 0.25 M
MEDIUM
108 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1974
The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is
(A) serine
(B) leucine
(C) threonine
(D) methionine
MEDIUM
109 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1973
According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is
(A) $Cl^{-}>NH_{3}>H_{2}O>CO$
(B) $CO>NH_{3}>H_{2}O>Cl^{-}$
(C) $CO>H_{2}O>NH_{3}>Cl^{-}$
(D) $Cl^{-}>H_{2}O>NH_{3}>CO$
MEDIUM
110 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1972
Arrange the following compounds in the increasing order of polarity: A. $CH_{3}CH_{2}OCH_{2}CH_{3}$, B. $CH_{3}CH_{2}OH$, C. $CH_{3}COCH_{3}$, D. $CH_{3}COOH$. Choose the correct answer from the options given below.
(A) $A<C<B<D$
(B) $A<B<C<D$
(C) $C<A<D<B$
(D) $C<A<B<D$
MEDIUM
111 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1971
For a salt XY, which is a strong electrolyte, the plot of $\Lambda_{m}$ versus $\sqrt{c}$ has a slope of $-90.0~S~cm^{2}mol^{-3/2}L^{1/2}$ at 298 K. At 0.01 M concentration of XY, the value of $\Lambda_{m}$ is $145.0~S~cm^{2}mol^{-1}$. The limiting molar conductivity of $Y^{-}$ ion $(\lambda_{Y^{-}}^{0}$, in $S~cm^{2}~mol^{-1}$) at 298 K will be (Given : $\lambda_{X^{+}}^{0}=74.0~S~cm^{2}mol^{-1})$
(A) 76
(B) 80
(C) 100
(D) 90
MEDIUM
112 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1970
Consider the following statements about the solutions formed by mixing two liquids. A. An ideal solution thus formed obeys Raoult's law throughout the composition range. B. Mixture of chloroform and acetone shows negative deviation from Raoult's law. C. Mixture of aniline and phenol shows positive deviation from Raoult's law. Choose the correct option:
(A) A and C only
(B) A and B only
(C) B and C only
(D) A only
MEDIUM
113 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1969
In potash alum, the ratio of $K^{+}$ and $SO_{4}^{2-}$ ions is
(A) 3:02
(B) 1:02
(C) 2:01
(D) 2:03
EASY
114 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1968
The standard electrode potential $(E^{\circ})$ for the half-cell reaction $Fe^{3+}+e^{-}\rightarrow Fe^{2+}$ at 298 K is (Given: $E^{\circ}(Fe^{3+}/Fe)=-0.041$ V and $E^{\circ}(Fe^{2+}/Fe)=-0.44$ V at 298 K)
(A) +0.92 V
(B) +0.40 V
(C) +0.76 V
(D) -0.48 V
HARD
115 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1967
A 1:3 electrolyte in an aqueous solution is
(A) $[Co(NH_{3})_{3}(NO_{2})_{3}]$
(B) $[CoCl_{2}(NH_{3})_{4}]Cl$
(C) $[CoCl(NH_{3})_{5}]Cl_{2}$
(D) $[Co(NH_{3})_{6}]Cl_{3}$
MEDIUM
116 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1966
The following carbocation is stabilized by the interaction of the empty p orbital with
(A) empty $\sigma^{*}$ and empty $\pi^{*}$ orbitals
(B) filled $\sigma$ and filled $\pi$ orbitals
(C) empty $\sigma$ and empty $\pi^{*}$ orbitals
(D) empty $\sigma^{*}$ and filled $\pi$ orbitals
EASY
117 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1965
Consider the following schematic plots of orbital wavefunction $(\psi_{r})$ against distance (r) from the nucleus. The figure representing two radial nodes in the orbital is
(A) D
(B) A
(C) B
(D) C
EASY
118 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1964
The amount of carbon dioxide evolved upon complete combustion of 116 g of n-butane is (Given: atomic mass in amu $H=1$, $C=12$ and $O=16$)
(A) 362 g
(B) 352 g
(C) 322 g
(D) 176 g
MEDIUM
119 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1963
The numbers 17.0145 and 21.0235 were rounded to three figures after the decimal point. The resulting numbers, respectively, are
(A) 17.015 and 21.024
(B) 17.014 and 21.023
(C) 17.015 and 21.023
(D) 17.014 and 21.024
EASY
120 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1962
The complex which has facial and meridional isomers is (Given: py = pyridine and en = $H_{2}N-CH_{2}-CH_{2}-NH_{2}$)
(A) $[Ni(en)_{2}(H_{2}O)_{2}]^{2+}$
(B) $[Cr(py)_{3}(Cl)_{3}]$
(C) $[Cr(H_{2}O)_{6}]^{3+}$
(D) $[Co(NH_{3})_{4}(H_{2}O)_{2}]^{3+}$
MEDIUM
121 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1961
The compound that CANNOT be obtained from the aldol condensation reaction shown below, is [Image Placeholder]
(A) [Image Placeholder]
(B) [Image Placeholder]
(C) [Image Placeholder]
(D) [Image Placeholder]
122 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1960
Two moles of an ideal gas undergo free expansion from 10 L to 100 L at 300 K. The values of $\Delta S_{system}$ and $\Delta S_{surroundings}$ are (R is universal gas constant)
(A) $\Delta S_{system}=4.606~R$; $\Delta S_{surroundings}=0$
(B) $\Delta S_{system}=0$; $\Delta S_{surroundings}=0$
(C) $\Delta S_{system}=4.606~R$; $\Delta S_{surroundings}=-4.606~R$
(D) $\Delta S_{system}=0$; $\Delta S_{surroundings}=4.606~R$
MEDIUM
123 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1959
Identify the reactions which give aniline as the major product. [Image Placeholder] Choose the correct answer from the options given below.
(A) C and D only
(B) A and B only
(C) B and D only
(D) A and C only
124 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1958
Given below are two statements: Statement-I: Oxidation of p-nitrotoluene with acidic $KMnO_{4}$ gives an acid that is stronger than benzoic acid. Statement-II: Reduction of p-nitrotoluene with $Sn/HCl$ followed by neutralization gives an amine that is more basic than aniline. In light of the above statements, choose the most appropriate answer from the options given below.
(A) Statement-I is incorrect but Statement-II is correct
(B) Both Statement-I and Statement-II are correct
(C) Both Statement-I and Statement-II are incorrect
(D) Statement-I is correct but Statement-II is incorrect
HARD
125 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1957
The correct statement about peptides and proteins is
(A) In $\alpha$-helices, the polypeptide chain is twisted into a left-handed screw (helix) through intramolecular hydrogen bonds
(B) Tertiary structure of proteins has two or more polypeptide subunits
(C) Only the proteins having a quaternary structure are biologically active
(D) In $\beta$-pleated sheet structures, peptide chains are held together by intermolecular hydrogen bonds
MEDIUM
126 Competency ANALYZE MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1956
Given below are two statements: Statement-I: $[Fe(ox)_{3}]^{3-}$ is chiral. Statement-II: trans-$[Cr(H_{2}O)_{2}(ox)_{2}]^{-}$ is chiral. (Given: $oxH_{2}=HOOC-COOH$) In light of the above statements, choose the most appropriate answer from the options given below:
(A) Statement-I is incorrect but Statement-II is correct
(B) Both Statement-I and Statement-II are correct
(C) Both Statement-I and Statement-II are incorrect
(D) Statement-I is correct but Statement-II is incorrect
MEDIUM
127 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1955
Among the following options, the correct trend in the electron gain enthalpy is
(A) $I>Br>Cl>F$
(B) $F>Cl>Br>I$
(C) $Br>Cl>F>I$
(D) $Cl>F>Br>I$
MEDIUM
128 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1954
Given below are two statements: Statement-I: Heating NaCl with concentrated $H_{2}SO_{4}$ and $MnO_{2}$ results in oxidation of Mn. Statement-II: Heating NaI with concentrated $H_{2}SO_{4}$ and $MnO_{2}$ results in reduction of Mn. In light of the above statements, choose the most appropriate answer from the options given below.
(A) Statement-I is incorrect but Statement-II is correct
(B) Both Statement-I and Statement-II are correct
(C) Both Statement-I and Statement-II are incorrect
(D) Statement-I is correct but Statement-II is incorrect
HARD
129 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1953
One of the products formed in the following reaction is [Image Placeholder]
(A) [Image Placeholder]
(B) [Image Placeholder]
(C) [Image Placeholder]
(D) [Image Placeholder]
130 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1952
Given below are two statements: Statement I: trans-But-2-ene upon treatment with $Br_{2}$ in $CCl_{4}$ gives the following product. [Image Placeholder] Statement II: cis-But-2-ene upon treatment with alkaline $KMnO_{4}$ gives the following product. [Image Placeholder] In the light of the above statements, choose the most appropriate answer from the options given below.
(A) Statement I is incorrect but Statement II is correct
(B) Both Statement I and Statement II are correct
(C) Both Statement I and Statement II are incorrect
(D) Statement I is correct but Statement II is incorrect
131 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1951
The green paramagnetic species formed by heating $KMnO_{4}$ at 513 K is
(A) $KO_{2}$
(B) $K_{2}MnO_{4}$
(C) $Mn_{3}O_{4}$
(D) $MnO$
MEDIUM
132 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1950
For an elementary chemical reaction, the Arrhenius plot is given below. [Image Placeholder] If the energy of activation is $6.64~kJ~mol^{-1}$ and $R=8.3~J~K^{-1}mol^{-1}$, the temperature at which the rate constant becomes $e^{2}min^{-1}$, is
(A) 250 K
(B) 125 K
(C) 150 K
(D) 200 K
133 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1949
The lanthanide ion having four unpaired electrons is (Given: Atomic numbers of $Ce=58$, $Nd=60$, $Tb=65$ and $Ho=67$)
(A) $Ho^{3+}$
(B) $Nd^{3+}$
(C) $Ce^{3+}$
(D) $Tb^{3+}$
MEDIUM
134 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1948
The formula of tetraammineaquachloridocobalt(III) chloride is
(A) $[Co(NH_{3})_{4}(H_{2}O)Cl]Cl_{2}$
(B) $[Co(NH_{3})_{4}Cl_{2}]Cl\cdot H_{2}O$
(C) $[Co(NH_{3})_{4}]Cl_{3}\cdot H_{2}O$
(D) $[Co(NH_{3})_{4}(H_{2}O)Cl]Cl$
MEDIUM
135 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1947
Consider the following reaction, and choose the correct option. [Image Placeholder]
(A) Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on $BaSO_{4}$
(B) On treating compound P with saturated $NaHCO_{3}$ solution, brisk effervescence is observed
(C) Compound P can be prepared by treating benzene with anhydrous $AlCl_{3}$ and $CH_{3}COCl$
(D) On treating with bromine water, compound P gives a white precipitate
136 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1946
Consider a spring-mass simple harmonic oscillator in one dimension. The mass of the particle is $m$ kg and the spring constant is $k~Nm^{-1}$. At a given instant, the extension of the spring is $x$-meter and the speed of the particle is $v~ms^{-1}$. On the $x-v$ plane, if the graph of $v$ as a function of $x$ is a circle, then the correct option is:
(A) $k=\sqrt{m}$
(B) $k=\frac{1}{m}$
(C) $k=m$
(D) $k=m^{2}$
MEDIUM
137 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1945
Two infinitely long parallel conducting wires A and B carry currents $I$ and $2I$, respectively, in the same direction. The wire A has uniform mass per unit length $\lambda$ and lies on an insulated floor. The wire B is kept fixed at a height $h$ above the floor. The minimum magnitude of $h$ so that the wire A does not rise from the floor is: [$g$ is the acceleration due to gravity and $\mu_{0}$ is the permeability of free space.]
(A) $\frac{4\mu_{0}I^{2}}{\pi\lambda g}$
(B) $\frac{\mu_{0}I^{2}}{2\pi\lambda g}$
(C) $\frac{\mu_{0}I^{2}}{\pi\lambda g}$
(D) $\frac{2\mu_{0}I^{2}}{\pi\lambda g}$
HARD
138 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1944
One mole of an ideal monatomic gas undergoes a cyclic process as shown in the figure. The total heat supplied to the gas is: [Image Placeholder]
(A) 800 J
(B) 400 J
(C) 500 J
(D) 600 J
139 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1943
In Geiger-Marsden experiment, the number of scattered $\alpha$-particles $N(\theta)$ is plotted as a function of scattering angle $\theta$. Which of the following options represents the correct plot? [Image Placeholder]
(A) [Image Placeholder]
(B) [Image Placeholder]
(C) [Image Placeholder]
(D) [Image Placeholder]
140 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1942
A point charge Q is placed inside a cavity within a solid isolated conducting sphere. Consider points A, B and C as shown in the figure, where the magnitudes of the electric fields are $E_{A},$ $E_{B}$, $E_{C},$ respectively. The points B and C are at the same distance from the center of the solid sphere. The correct option is : [Image Placeholder]
(A) $E_{A}\neq0$, $E_{B}<E_{C}$
(B) $E_{A}=0$, $E_{B}=E_{C}$
(C) $E_{A}\neq0$, $E_{B}=E_{C}$
(D) $E_{A}=0$, $E_{B}>E_{C}$
141 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1941
One main scale division of a Vernier calliper is equal to 1 mm and the number of divisions on the Vernier scale is 10. When both the jaws touch each other, the Vernier scale shifts to the left of zero of the main scale in such a way that 4th Vernier division coincides with a division of the main scale. If this Vernier calliper measures the length of the wire to be 1 cm, the actual length of the wire is:
(A) 1.04 cm
(B) 0.60 cm
(C) 0.96 cm
(D) 100 cm
MEDIUM
142 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1940
A ray of light with wavelength $\lambda$ is incident on three different photoelectric cells namely 1, 2 and 3. The threshold wavelength of these photoelectric cells are $\lambda_{1}$, $\lambda_{2},$ and $\lambda_{3,}$ respectively and the magnitude of stopping potentials of these cells are $V_{1}$, $V_{2}$ and $V_{3},$ respectively. The relation between $\lambda$ and threshold wavelengths are $\lambda_{1}<\lambda$, $\lambda_{2}>\lambda$ and $\lambda_{3}>>\lambda$. The correct option is:
(A) $V_{1}<V_{2}, V_{3}=0$
(B) $V_{1}=0, V_{2}<V_{3}$
(C) $V_{1}=0, V_{2}>V_{3}$
(D) $V_{1}>V_{2}, V_{3}=0$
MEDIUM
143 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1939
Consider that $\sigma_{S}$, $k_{B}$, b represents Stefan-Boltzmann constant, Boltzmann constant and Wien's displacement law constant, respectively. The dimension of $\sigma_{s}k_{B}^{-1}b$ is
(A) $[L^{-1}T^{-1}K^{-4}]$
(B) $[L^{-1}T^{-1}K^{-2}]$
(C) $[L^{-1}K^{-2}]$
(D) $[L^{-1}T^{-1}K^{-3}]$
MEDIUM
144 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1938
In a solar system, the time-period of revolution of a planet tracing a circular orbit of radius R is proportional to:
(A) $R^{3}$
(B) $R^{1/2}$
(C) $R^{3/2}$
(D) $R^{2}$
EASY
145 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1937
Which of the following measurements require 'index correction'?
(A) Measurement of speed of sound using resonance tube
(B) Measurement of resistance of a wire using meter bridge
(C) Measurement of gravitational acceleration using simple pendulum
(D) Measurement of focal length of lenses using optical bench
MEDIUM
146 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1936
Consider the following nuclear reaction ${}^{238}U\longrightarrow{}^{234}Th+{}^{4}He$. Take masses of ${}^{238}U$, ${}^{234}Th$ and ${}^{4}He$ as 238.050 u, 234.043 u and 4.003 u, respectively. The Q value for the reaction, in keV, is: [Given: $1~u=931.5~MeV~c^{-2}$]
(A) 3740
(B) 3726
(C) 3730
(D) 3736
MEDIUM
147 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1935
For sound waves, if the number of nodes for the $5^{th}$ harmonic of an open-ended pipe is n and that for the $9^{th}$ harmonic of the same pipe with one of its ends closed is m, the ratio $\frac{n}{m}$ is
(A) $\frac{3}{5}$
(B) $\frac{5}{9}$
(C) $\frac{9}{5}$
(D) 1
MEDIUM
148 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1934
A cylindrical cork of uniform density floats in a liquid of density $\rho_{1}$. If the cork is depressed slightly and released, it oscillates harmonically with time period T. If the same cork floats in another liquid of density $\rho_{2}$, then the similar oscillation has time period 2T. The value of $\rho_{2}/\rho_{1}$ is:
(A) $1/4$
(B) 4
(C) 2
(D) $1/2$
HARD
149 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1933
The mean free path of molecules in an ideal gas A is half that of another ideal gas B. The diameter of the spherical molecules of gas A is twice the diameter of the molecules of B. If number densities of the gases A and B are $n_{A}$ and $n_{B}$ respectively, the correct option is:
(A) $n_{A}=\frac{1}{2}n_{B}$
(B) $n_{A}=n_{B}$
(C) $n_{A}=2n_{B}$
(D) $n_{A}=\frac{1}{4}n_{B}$
MEDIUM
150 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1932
Consider that an electron is revolving in an excited state of Hydrogen atom with velocity $\sqrt{25.6}\times10^{5}ms^{-1}$. The radius of the orbit is $x\times10^{-9}$ m. The value of x is: [Take the mass of electron to the $9\times10^{-31}$ kg, charge of electron $=-1.6\times10^{-19}C$ and $\frac{1}{4\pi\epsilon_{0}}=9\times10^{9}Nm^{2}C^{-2}$]
(A) 1
(B) 4
(C) 3
(D) 2
MEDIUM
151 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1931
A solid sphere A of radius R and mass M is attached at a point to a smaller solid sphere B of radius $r<R$ and mass $m<M.$ Assume that the line joining their centres lies along the horizontal. The moment of inertia of the system calculated about a vertical axis passing through the centre of A is $I_{A}$ and that calculated about a vertical axis passing through the centre of B is $I_{B}$. The difference $I_{A}-I_{B}$ is: [Image Placeholder]
(B) $(M-m)(R+r)^{2}$
(C) $(m-M)(R+r)^{2}$
(D) $(m-M)(R-r)^{2}$
152 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1930
The lens combination as shown in the figure, consists of two lenses, $L_{1}$ and $L_{2}$, of the focal lengths +10 cm and -10 cm, respectively. The position of the image formed is: [Image Placeholder]
(A) 60 cm to the right of the concave lens
(B) 20 cm to the left of the concave lens
(C) 60 cm to the left of the concave lens
(D) 30 cm to the right of the concave lens
153 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1929
Three identical p-n junction diodes $D_{1}$, $D_{2}$ and $D_{3}$ are connected across a battery as shown in the figure. If the width of the depletion regions of $D_{1},$ $D_{2}$ and $D_{3}$ are $W_{1},$ $W_{2}$ and $W_{3}$, respectively, then the correct option is: [Image Placeholder]
(A) $W_{2}>W_{1}=W_{3}$
(B) $W_{1}>W_{2}>W_{3}$
(C) $W_{3}=W_{1}>W_{2}$
(D) $W_{3}>W_{2}>W_{1}$
154 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1928
A frictionless circular wire of unit radius is fixed on the horizontal plane. Two-point particles of unit mass start moving simultaneously from point $A(\theta=\frac{\pi}{2})$ with identical uniform angular speeds in opposite directions, and meet again at point $B(\theta=-\frac{\pi}{2})$. During this time, which of the following figures schematically represent the magnitude of the total linear momentum P of the system, as a function of $\theta$? [Image Placeholder]
(A) [Image Placeholder]
(B) [Image Placeholder]
(C) [Image Placeholder]
(D) [Image Placeholder]
155 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1927
A car travels on a circular racetrack of radius 50 m, which is banked at an angle $\theta$. If the car travels at a speed $10~ms^{-1}$, then the wear and tear on its tyres is minimum. Taking the acceleration due to gravity to be $10~ms^{-2}$, the value of $\theta$ is:
(A) $\tan^{-1}(2\sqrt{3})$
(B) $\tan^{-1}(\frac{1}{5})$
(C) $\tan^{-1}(\frac{2}{5})$
(D) $\tan^{-1}(\sqrt{3}/2)$
MEDIUM
156 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1926
Consider a fixed uniformly charged insulating sphere with radius R and total charge +Q. A point charge -q $(q<<Q)$ with mass m is released from rest at a distance of 3R from the centre of the charged sphere. When the point charge reaches the surface of the sphere, its speed is: ($\epsilon_0$ is the permittivity of vacuum, neglect gravitational forces).
(A) $\sqrt{\frac{Qq}{4\pi\epsilon_{0}mR}}$
(B) $\sqrt{\frac{3Qq}{4\pi\epsilon_{0}mR}}$
(C) $\sqrt{\frac{2Qq}{3\pi\epsilon_{0}mR}}$
(D) $\sqrt{\frac{Qq}{3\pi\epsilon_{0}mR}}$
HARD
157 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1925
Consider three media P, Q and R with refractive indices 1, 1.25, and 1.5 respectively. The medium Q having a thickness of 5 cm is placed between extended media P and R as shown in the figure. An object O is placed at the centre of medium Q. If viewed from medium P near the normal direction, the apparent depth of O is $h_1$. For similar observation from medium R, the apparent depth is $h_2$. The value of $|h_{1}-h_{2}|$, in cm, is: [Image Placeholder]
(A) 3
(C) 1
(D) 2
158 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1924
A particle of mass M moves along a horizontal x axis from $x=0$ to $x=L$. The coefficient of kinetic friction varies as a function of x as $\mu_{k}(x)=\mu_{0}-\alpha x,$ where $\mu_0$, $\alpha$ are constants of appropriate dimensions, so that $\mu_{k}(L)=0$. The total work done by the frictional force during the motion is $n\mu_0 MgL$, where g is the acceleration due to gravity. The value of n is:
(A) $\frac{1}{2}$
(B) 3
(C) 1
(D) $\frac{1}{3}$
MEDIUM
159 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1923
An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant, $\epsilon_{r}=9$, has the electric field, $E_{x}=E_{0} \sin(kz-2\pi\times10^{6}t)Vm^{-1}$ where $E_{0}$ is the amplitude and k is the wave vector. Among the following options, the incorrect choice is
(A) The direction of propagation of the electromagnetic wave is along +z
(B) The speed of the electromagnetic wave inside the medium is $10^{8}ms^{-1}$
(C) The wavelength of the electromagnetic wave inside the medium is 300 m
(D) The magnetic field is given by the relation $B_{y}=\frac{B_{0}}{v}\sin(kz-2\pi\times10^{6}t)$ where v is the speed of the electromagnetic wave inside the medium
MEDIUM
160 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1922
Bob B of mass m at rest is hanging vertically from the ceiling via a massless string of length 10 m, as shown in the figure. Point mass A of mass m travelling horizontally with speed $10~ms^{-1}$ hits bob B elastically. The bob B rises h meter after the collision. Taking the acceleration due to gravity $g=10~ms^{-2}$ and neglecting the size of the bob, the value of h is: [Image Placeholder]
(A) 2.5
(B) 8
(C) 7
(D) 5
161 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1921
A current $I_{0}$ flows through a metallic circular loop of radius r as shown in the figure. Resistance of the segment ABC is half that of ADC. Magnitude of magnetic field at the centre O of the loop is: [Image Placeholder]
(A) $\frac{\mu_{0}I_{0}}{2\pi r}$
(B) $\frac{\mu_{0}I_{0}}{12r}$
(C) $\frac{\mu_{0}I_{0}}{4r}$
(D) $\frac{\mu_{0}I_{0}}{2r}$
162 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1920
A unit positive point charge is taken slowly through an infinitesimally thin tube that is inside a charged dielectric sphere of radius R, having uniform positive charge density $\rho$, as shown in the figure. The initial and final positions of the charge are marked by A and B at distance 2R and 3R respectively, from the centre of the sphere. In this process, the magnitude of the total work done on the point charge is $\frac{\rho R^{2}}{n\epsilon_{0}}$. The value of n is: ($\epsilon_{0}$ is the permittivity of vacuum) [Image Placeholder]
(A) 18
(B) 2
(C) 6
(D) 9
163 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1919
An ideal gas is made of polyatomic molecules. Each of the molecules has three translational, three rotational and f number of vibrational modes. If the ratio of heat capacities $C_{P}/C_{V}$ of the gas is $8/7,$ then the value of f is:
(A) 1
(B) 4
(C) 3
(D) 2
MEDIUM
164 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1918
The following table presents the part of the electromagnetic spectrum and their corresponding major applications.

P. Microwave - I. For purifying the water
Q. UV rays - II. For warming the food
R. Gamma rays - III. For AM and FM communication systems
S. Radio wave - IV. For treating the Cancer cells

The correct option is:
(A) P-II, Q-IV, R-III, S-I
(B) P-I, Q-II, R-III, S-IV
(C) P-I, Q-IV, R-II, S-III
(D) P-II, Q-I, R-IV, S-III
EASY
165 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1917
Consider a particle moving along a straight line, whose position as a function of time is given by $s(t)=\alpha t^{2}-\beta t+\gamma$, where $\alpha=1~ms^{-2}$ $\beta=6~ms^{-1}$ and $\gamma=5m.$ The average speed of the particle, in $ms^{-1}$ from $t=0$ to $t=6$ s is:
(B) 12
(C) 6
(D) 3
MEDIUM
166 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1916
In an adiabatic expansion, the temperature of one mole of an ideal monatomic gas $(\gamma=5/3)$ decreases from 60 K to 50 K. The work done by the gas in the process is: (Take the universal gas constant as $R=8.3~J~mol^{-1}K^{-1})$
(A) 166 J
(B) 41.5 J
(C) 83 J
(D) 124.5 J
MEDIUM
167 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1915
A conducting loop of finite resistance lies on the $x-y$ plane. There is a constant magnetic field in the z direction. The area of the loop varies with time t, as $A=A_{0}(1+\sin t)$ in appropriate units. The figure that correctly indicates the qualitative behaviour of the power P dissipated in the loop as a function of time is: [Image Placeholder]
(A) [Image Placeholder]
(B) [Image Placeholder]
(C) [Image Placeholder]
(D) [Image Placeholder]
168 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1914
Three identical capacitors, P, Q and S, each of the capacitance C, are connected to a battery of voltage $V,$ as shown in the figure. If the energy stored in the capacitor P and total energy stored in the system are $U_{P}$ and $U_{T}$ respectively, then the ratio $\frac{U_{P}}{U_{T}}$ is: [Image Placeholder]
(A) $1/6$
(B) $2/3$
(C) $1/3$
(D) $1/2$
169 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1913
Two identical inductors are connected in two different configurations P and Q, where a time varying current $l(t)$ is flowing, as shown in the figure. The induced emf between points a and b for configuration P is $E_{P}$ and that for configuration Q is $E_{Q}$ The ratio $E_{P}/E_{Q}$ is: [Neglect the effect of mutual inductance.] [Image Placeholder]
(A) 2
(B) $1/4$
(C) $\frac{1}{2}$
(D) 1
170 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1912
An ac voltage $V=220~sin(2\times10^{3}t)$ Volt is applied to a series LCR circuit. Then the current amplitude in this circuit is: (Given: $L=10~mH.$ $C=25\mu F,$ $R=100~\Omega)$
(A) 22.0 A
(B) 2.2 A
(C) 5.5 A
(D) 11.0 A
MEDIUM
171 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1911
Two planets $P_{1}$ and $P_{2}$ with equal mass have radii $R_{1}$ and $R_{2}$, respectively, where $R_{2}=\frac{R_{1}}{2}$. The escape speeds of $P_{1}$ and $P_{2}$ are $v_{1}$ and $v_{2},$ respectively. Then $\frac{v_{2}}{v_{1}}$ is:
(A) 2
(B) $\frac{1}{\sqrt{2}}$
(C) 1
(D) $\sqrt{2}$
MEDIUM
172 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1910
In the measurement of viscosity of liquids using terminal velocity experiment, spherical balls of same radius but having different densities are used. The variation of the terminal velocity (v) with the ratio of density of spherical ball ($\sigma$) to density of the liquid ($\rho$), is best represented by:
(A) 1
(B) 2
(C) 3
(D) 4
EASY
173 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1909
An ideal Zener diode with breakdown voltage of -3 V is reverse biased with a negative input voltage $V_{i}=-5$ V. The magnitude of voltage difference between point B and A is: [Image Placeholder]
(A) 0 V
(B) 3 V
(C) 2 V
(D) 1 V
174 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1908
A beam of light falls on a metal surface such that photo-electrons are generated. If power of the light source starts to decrease linearly with time t, then variation of the photocurrent I and magnitude of the stopping potential V with time is best represented by: [Image Placeholder]
(A) [Image Placeholder]
(B) [Image Placeholder]
(C) [Image Placeholder]
(D) [Image Placeholder]
175 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1907
Consider two circuits, (A) and (B), each having two resistors. One of them has a positive temperature coefficient of resistance, +$\alpha$, while the other one has a negative temperature of coefficient, -$\alpha$, as shown in the figure. The current through these circuits are denoted by $I_{A}$ and $I_{B}$. At initial temperature, the resistance of the two resistors is $R_0$. As the temperature is increased, the correct option that describes the variation of current in these circuits is:
(A) both $I_{A}$ and $I_{B}$ remain constant
(B) $I_{A}$ remains constant while $I_{B}$ increases
(C) $I_{A}$ decreases while $I_{B}$ increases
(D) $I_{A}$ increases while $I_{B}$ decreases
EASY
176 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1906
The temperature of a metallic sphere of radius R is increased by a small amount $\Delta T.$ If the linear coefficient of thermal expansion of the metal is $\alpha$, the approximate increase in the volume of the sphere is:
(A) $6\pi R^{3}\alpha\Delta T$
(B) $2\pi R^{3}\alpha\Delta T$
(C) $3\pi R^{3}\alpha\Delta T$
(D) $4\pi R^{3}\alpha\Delta T$
MEDIUM
177 Knowledge APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1905
Consider a long solenoid of length $l$ and radius $r$. If $n$ is the number of turns per unit length and $\mu_{0}$ is the permeability of free space, the inductance of the solenoid is:
(A) $2\mu_{0}\pi n^{2}r^{2}l$
(B) $\mu_{0}\pi n^{2}r^{2}l$
(C) $\mu_0 n^{2}r^{2}l$
(D) $(\mu_{0}/2\pi)n^{2}r^{2}l$
MEDIUM
178 Knowledge REMEMBER MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1904
A thin horizontal disc is rotating about a vertical axis passing through its fixed centre O. Its angular momentum is $L_{A}$ and $L_{B}$ computed about points A and B, respectively, with $OB=2\times OA.$ The value of $\frac{L_{A}}{L_{B}}$ is:
(A) 2
(B) $\frac{1}{4}$
(C) $\frac{1}{2}$
(D) 1
EASY
179 Knowledge MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1903
Water flows in a streamline motion through a horizontal pipe of circular cross-section as shown in the figure. The pressure difference of water between P and Q is $15~Nm^{-2}.$ The area of cross-section at P and Q are 40 $cm^{2}$ and $20~cm^{2}$, respectively. The rate of flow of water through the pipe, in $cm^{3}s^{-1}$, is: [Take density of water $=1000~kg~m^{-3}]$ [Image Placeholder]
(A) 400
(B) 100
(C) 200
(D) 300
180 Competency APPLY MCQ_SINGLE 4 Mark(s) 2026 NTA-RE-NEET-2026
#1902
A photon and an electron, each of 20 eV energy, move in free space. The ratio of linear momentum of electron $p_{e}$ to that of photon $p_{Ph}$, $\frac{p_{e}}{p_{Ph}}$ is [Take speed of light $=3\times10^{8}ms^{-1}$ charge of electron $=-1.6\times10^{-19}C$ and mass of electron $=9\times10^{-31}$ kg]
(A) 275
(B) 225
(C) $\frac{1}{250}$
(D) $\frac{2}{450}$
MEDIUM