While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.

o-nitrophenol and p-nitrophenol both have intramolecular H–bonding. Because intermolecular bonding exists in p–nitrophenol, the molecules are tightly bound together. As a result, o – nitrophenol is a steam volatile compound.