Chemistry General Organic Chemistry Methods of Purification of Organic Compounds Single Correct MCQ
Published on: August 13, 2026

Which one of the following methods can be used to separate a mixture of ortho and para

nitrophenols?

A
Crystallisation
B
Solubility
C
Sublimation
D
Steam distillation

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Text Solution

Verified by Experts
The correct answer is:
D

Ortho and pare -nitrophenols have significant differences in their boiling points because

ortho-nitrophenol forms intramoleculer hydrogen bonds & has lower boiling point than para nitrophenol which has intermolecular hydrogen bonding. Hence, steam distillation method is used to separate them.

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