Some Basic Principles Of Organic Chemistry Question 97
Question: p-nitrophenol and o-nitrophenol are separated by [BVP 2004]
Options:
A) Crystallisation
B) Fractional crystallisation
C) Distillation
D) Steam distillation
Show Answer
Answer:
Correct Answer: D
Solution:
o-nitro phenol has intra molecular hydrogen bonding, while p-nitrophenol has intermolecular hydrogen bonding (comparitively stronger).
Due to this reason, the boiling point of o-nitrophenol is found quite less than that of p-nitrophenol.
Hence, o-nitrophenol is steam volatile and can be separated from p-nitrophenol by steam distillation.
