Question

Match the following:

List-I (Name of Reagent)		List-II (Composition)
A	Jones reagent	I	\(\mathrm{Zn\!-\!Hg/HCl}\)
B	Clemmensen reagent	II	Conc. HCl + anhyd. \(\mathrm{ZnCl_2}\)
C	Tollens' reagent	III	\(\mathrm{CrO_3/H_2SO_4}\)
D	Lucas reagent	IV	\([\mathrm{Ag(NH_3)_2}]^{+}\)
		V	\(\mathrm{SnCl_2/HCl}\)

The correct answer is

• A. A--III, B--IV, C--V, D--II
• B. A--III, B--I, C--IV, D--II
• C. A--II, B--I, C--IV, D--III
• D. A--V, B--III, C--II, D--I

Hint:

Important reagents: \[ \boxed{ \begin{aligned} &\text{Jones reagent} &&\rightarrow \mathrm{CrO_3/H_2SO_4}, &\text{Clemmensen reagent} &&\rightarrow \mathrm{Zn(Hg)/HCl}, &\text{Tollens' reagent} &&\rightarrow [\mathrm{Ag(NH_3)_2}]^{+}, &\text{Lucas reagent} &&\rightarrow \text{Conc. HCl + anhyd. ZnCl}_2. \end{aligned} } \]

Answer 1

The Correct Option is B

Step 1: Recall the composition of the reagents.& nbsp;

\[ \begin{aligned} \text{Jones reagent} & amp;\rightarrow \mathrm{CrO_3-H_2SO_4},\\[2mm] \text{Clemmensen reagent} & amp;\rightarrow \mathrm{Zn\text{-}Hg/HCl},\\[2mm] \text{Tollens' reagent} & amp;\rightarrow [\mathrm{Ag(NH_3)_2}]^{+},\\[2mm] \text{Lucas reagent} & amp;\rightarrow \text{Conc. HCl + anhyd. } \mathrm{ZnCl_2}. \end{aligned} \]

Step 2: Write the correct matching.

Hence,

\[ \boxed{ A \rightarrow III,\; B \rightarrow I,\; C \rightarrow IV,\; D \rightarrow II. } \]

Step 3: Choose the correct option.

Therefore, the correct option is

\[ \boxed{(B)}. \]