Question

Match the following.

List-I	List-II
(A) Colored impurity	(P) Steam distillation
(B) Mixture of o-nitrophenol and p-nitrophenol	(Q) Fractional distillation
(C) Crude Naphtha	(R) Charcoal treatment
(D) Mixture of glycerol and sugars	(S) Distillation under reduced pressure

• A. (A)-(R), (B)-(S), (C)-(P), (D)-(Q)
• B. (A)-(R), (B)-(P), (C)-(S), (D)-(Q)
• C. (A)-(P), (B)-(S), (C)-(R), (D)-(Q)
• D. (A)-(R), (B)-(P), (C)-(Q), (D)-(S)

Answer 1

The correct option is D (A)-(R), (B)-(P), (C)-(Q), (D)-(S)

(A) Charcoal treatment removes coloured impurity through adsorption.
(B) Steam distillation separates the mixture of o-nitrophenol and p-nitrophenol. The o-nitrophenol is steam volatile (due to intramolecular hydrogen bonding), and the para isomer is not volatile.
(C) Fractional distillation separates Crude Naphtha. Naphtha is a flammable liquid hydrocarbon mixture.
(D) Distillation under reduced pressure separates mixture of glycerol and sugars. Vacuum distillation lowers the boiling point and prevents decomposition.