Ortho and para isomers of nitrophenol can be separated by ________ distillation.

Ortho and para isomers of nitrophenol can be separated by ________ distillation. Correct Answer steam

o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding between O of nitro group and H of hydroxyl group. On the other hand, p-Nitrophenol is present as associated molecules due to intermolecular hydrogen bonding, thus making it less volatile. Hence, a mixture of both can be separated by steam distillation.
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