Question

O-nitrophenol is more volatile than para-nitrophenol due to –

• A. Intramolecular H-bonding in o-nitrophenol and intermolecular H-bonding in p-nitrophenol
• B. Intermolecular H-bonding in o-nitrophenol and intramolecular H-bonding in p-nitrophenol
• C. More stronger intramolecular H-bonding in o-nitrophenol as compared to p-nitrophenol
• D. More stronger intermolecular H-bonding in o-nitrophenol as compared to p-nitrophenol

Answer 1

Answer: (A)

Intramolecular H-bonding in o-nitrophenol and

intermolecular H-bonding in p-nitrophenol

Answer 2

Intermolecular H-bond intermolecular H-bond

and steam volatile and boiling pt. is higher.