AIIMS2001Chemistry-Phenols
AIIMS 2001 Chemistry Hydrogen Bonding Assertion Reason Question
Type: Assertion Reason-conceptual-Medium-Class 12
Assertion (A) : o-nitrophenol is more volatile than p-nitrophenol.
Reason (R) : Intramolecular hydrogen bonding is present in o-nitrophenol while intermolecular H⁻bonding is in p-nitrophenol.
A
If both A and R are true and R is the correct explanation of A.
B
If both A and R are true but R is not the correct explanation of A.
C
If A is true but R is false.
D
If A is false but R is true.
Correct Answer
Option A
Detailed Explanation
Intramolecular hydrogen bonding in o-nitrophenol reduces intermolecular forces, making it more volatile compared to p-nitrophenol, which forms stronger intermolecular hydrogen bonds.
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