Question

Assertion : o-Nitrophenol is more volatile than p-nitrophenol
Reason : Intramolecular hydrogen bonding is present in o-nitrophenol while intermolecular H - bonding is in p-nitrophenol.

• A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. If Assertion is true but Reason is false
• D. If Assertion is false but Reason is true

Answer 1

Answer: (A)

$p$-Nitrophenol has higher boiling point than $o$-nitrophenol, because intermolecular hydrogen bonding present in $p$-nitrophenol is responsible for it. But intramolecular hydrogen bonding in $o$-nitrophenol does not effect boiling point.