JEE Main Chemistry question

The best method to separate the mixture of ortho- and para-nitrophenol (1:1) is

(A)Vaporisation
(B)Colour spectrum
(C)DistillationCorrect
(D)Crystallisation

Answer: (C)

Solution

The ortho and para isomers differ sharply in volatility (o-nitrophenol's intramolecular H-bonding makes it markedly more volatile than the intermolecularly

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Question ID VK-139239