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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

The correct decreasing order of oxidation state of the underlined atom in each molecule is

The correct order of solubility of the given salts in water at 298 K is: Salt | $K_{sp}$ at 298 K: AgBr | $5.0\times10^{-13}$, $Zn(OH)_{2}$ | $1.0\times10^{-15}$, $Hg_{2}Cl_{2}$ | $1.3\times10^{-18}$

$2A\rightarrow B$ 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

Among the following, the compound having conjugated double bonds is

The correct statement is

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

The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is

According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is

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.

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 : $\lambda_{X^{+}}^{0}=74.0~S~cm^{2}mol^{-1})$

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:

In potash alum, the ratio of $K^{+}$ and $SO_{4}^{2-}$ ions is

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 1:3 electrolyte in an aqueous solution is

The following carbocation is stabilized by the interaction of the empty p orbital with

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

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 $O=16$)

The numbers 17.0145 and 21.0235 were rounded to three figures after the decimal point. The resulting numbers, respectively, are

The complex which has facial and meridional isomers is (Given: py = pyridine and en = $H_{2}N-CH_{2}-CH_{2}-NH_{2}$)