Q60 / 180 · NEET 2017 · Chemistry

The most suitable method of separation of $1 : 1$ mixture of ortho and para-nitrophenol is:

A
Sublimation
B
Chromatography
C
Crystallisation
Correct answer
D
Steam distillation

Solution

The ortho and para isomers can be separated by steam distillation. o-nitrophenol is more volatile due to intramolecular hydrogen bonding.

Hence, the correct answer is option: 'D'.

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