Chemistry Carboxylic Acids SZABMU 2022
PMDC Verified Question 45 of 94
Carboxylic acid reacts with alcohol to form:
A
Ester
B
Aldehyde
C
Ketones
D
Alkyl Halide
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Ester
Concept:

The direct reaction between a carboxylic acid and an alcohol under acidic catalysis is a classic condensation reaction called Fischer esterification.

Formula:

$$ \text{RCOOH} + \text{R}'\text{OH} \rightleftharpoons \text{RCOOR}' + \text{H}_2\text{O} $$

Solution:

  • The nucleophilic oxygen of the alcohol attacks the electrophilic carbonyl carbon of the carboxylic acid.


  • A water molecule is expelled, and the two organic fragments link via an oxygen atom to form an ester.


Why other options are incorrect:

Aldehydes, ketones, and alkyl halides cannot be synthesized by merely mixing an acid and an alcohol; those require redox or halogenation chemistry.

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