AIIMS2001Chemistry-Alcohols and Ethers
AIIMS 2001 Chemistry Boiling Points Assertion Reason Question
Type: Assertion Reason-conceptual-Medium-Class 12
Assertion (A) : CH₃OCH₃ and C₂H₅OH has comparable molecular weight but boiling point of C₂H₅OH is more than dimethyl ether.
Reason (R) : C₂H₅OH forms intermolecular H⁻bonding while CH₃OCH₃ forms intramolecular H⁻bonding.
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 C
Detailed Explanation
C₂H₅OH forms intermolecular hydrogen bonds, which increases its boiling point. CH₃OCH₃ does not form intramolecular hydrogen bonds; instead, it lacks hydrogen bonding.
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