MCQ_SINGLE

The plastid that stores xanthophyll is known as

MCQ_SINGLE

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]

MCQ_SINGLE

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

MCQ_SINGLE

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:

MCQ_SINGLE

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.

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