Correct option is C
The correct answer is (c) (A) is true but (R) is false
Explanation:
• Assertion (A) is true: Carboxylic acids do not give characteristic tests of the carbonyl group (like with 2,4-DNP or NaHSO₃).
• Reason (R) is false: The carbonyl carbon in carboxylic acids is less electron deficient (less electrophilic) than in aldehydes/ketones because of resonance with the lone pair on the -OH oxygen.
• This resonance reduces the electrophilic character of the carbonyl carbon.
Information Booster:
• Carboxylic acids behave as a single functional group rather than separate carbonyl and hydroxyl groups.
• They undergo Nucleophilic Acyl Substitution rather than Nucleophilic Addition.
Additional Knowledge:
Option A
• Incorrect as (A) is a well-known chemical property.
Option B & D
• Incorrect as the reason provided (R) is scientifically inaccurate regarding electron deficiency.
So the correct answer is (c)