question_answer

Out of the given two compounds, the vapour pressure of B at a particular temperature is

A)  higher than that of A

B)  lower than that of A

C)  higher or lower than A depending on the size of the vessel

D)  same as that of A

Correct Answer: A

Solution :

Vapour pressure of o-nitrophenol is more than vapour pressure of p-nitrophenol due to the intramolecular hydrogen bonding. As a result, it is more volatile.