Question

Column-I contains binary liquid mixture in ether and column-II contains method used for separation.

$\begin{array}{cccc}& \text{Column-I}& & \text{Column-II}\\ \text{P.}& \text{Aniline + N-methyl aniline}& \text{1.}& \text{i. Addition of}\left[Ag\right(N{H}_3{)}_2{]}^{+}\\ & & & \text{ii. Filteration}\\ & & & \text{iii. Treating precipitate with dil.}HCl\\ \text{Q.}& \text{Phthalimide + Benzyl amine}& \text{2.}& \text{i. Addition of}{C}_6{H}_{5}S{O}_{2}Cl+aq.NaOH\\ & & & \text{ii. Treating aq. layer with dil.}HCl\\ & & & \text{and distilled over}NaOH\\ \text{R.}& \text{Propan-1-ol + Propanone}& \text{3.}& \text{i. Addition of}NaOH\\ & & & \text{ii. Treating aqueous with}HCl\\ \text{S.}& \text{But-1-yne + But-2-yene}& \text{4.}& \text{i. Addition of saturated}NaHS{O}_3\\ & & & \text{ii. Filteration}\\ & & & \text{iii. Heating precipitate with dil.}HCl\end{array}$

Select the correct option considering column-I and column-II.

• A. $Q\to 1;S\to 3$
• B. $Q\to 3;S\to 1$
• C. $Q\to 3;S\to 2$
• D. $Q\to 2;S\to 4$

Answer 1

The correct option is B $Q\to 3;S\to 1$

(Q). Phthalimide on treatment with a base gets converted to its sodium salt and is soluble in aqueous media while benzyl amine does not. Aqueous part is then neutralised by $HCl$ and phthalimide is recovered.
(S). Terminal alkyne (eg. 1-butyne) reacts with Tollens' reagent and gives white precipitate.