MCQ
The most suitable reagent for the following conversion is


- A$Na/lquid\; NH_{3}$
- ✓$\mathrm{H}_{2}, \mathrm{Pd} / \mathrm{C},$ quinoline
- C$Zn/HCl$
- D$\mathrm{Hg}^{2+} / \mathrm{H}^{+}, \mathrm{H}_{2}O$


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$A \rightarrow B$ is an adiabatic process. If the total heat absorbed in the entire process ( $A \rightarrow B$ and $B \rightarrow C$ ) is $R T_2 \ln 10$, the value of $2 \log V_3$ is . . . . . [Use, molar heat capacity of the gas at constant pressure, $\mathrm{C}_{\mathrm{p}, \mathrm{m}}=\frac{5}{2} \mathrm{R}$ ]
Product $(A)$ is

