Assertion (A) : A mixture of o-and p- nitrophenols can be separated by steam distillation
ReasoN (R) : p-nitrophenol is steam volatile due to intramolecular hydrogen bonding

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A and R are ture, but R is not correct explanation for A

A and R are true. R is the correct explanation for A

A is true, but R is false

A is false, but R is true

answer is C.

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Detailed Solution

o − nitro phenol has intramolecular hydrogen bonding, while p − nitrophenol has intermolecular hydrogen bonding (comparatively stronger than intramolecular hydrogen bonding). 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.

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