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Question

Chemistry Question on Chemical Reactions

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

A

B > A > D > C

B

B > D > C > A

C

A > B > C > D

D

A > C > B > D

Answer

B > A > D > C

Explanation

Solution

CF3COOH>CCl3COOH>HCOOH>CH3COOH Acidic strength due to Ieffect\frac{ CF _{3} COOH > CCl _{3} COOH > HCOOH > CH _{3} COOH }{\text { Acidic strength due to }- I \text{effect} }