question_answer

Which of the following compounds has maximum volatility?

A)                                                                             

B)

C)                                                

D)

Correct Answer: C

Solution :

                 Salicylic acid has intra molecular H-bonding which prevents association of molecules and lower its melting and boiling point. Consequently, the vapour pressure or volatility of salicylic acid is increased.  [Intra molecular H-bonding in salicylic acid]