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AIPMT PRELIMS2012Chemistry-Acid-Base Chemistry

AIPMT PRELIMS 2012 Chemistry Acid Strength MCQ Question

Type: MCQ-conceptual-Medium

The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is:

A

A > C > B > D

B

B > A > D > C

C

B > D > C > A

D

A > B > C > D

Correct Answer

Option B

Detailed Explanation

The order is due to the -I effect of the halogens, with fluorine having a stronger effect than chlorine.

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