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The decreasing order of acidity among th...

The decreasing order of acidity among the following compounds is :
`underset("(I)")("ethanol"), underset("(II)")("2,2,2-trifluoroethanol"),underset("(III)")("trifluoroacetic"),underset("(IV)")("acetic acid")`

A

IIIgtIIgtIVgtI

B

IVgtIIIgtIIgtI

C

IgtIIgtIIIgtIV

D

IIIgtIVgtIIgtI

Text Solution

Verified by Experts

The correct Answer is:
D
Carboxylic acids are stronger acids than alcohols and fluoroacids are stronger acids than unsubstituted acids and fluoroalcohols are stronger acids than unsubstituted alcohols. Thus, acidity decreases in the order: trifluoroacetic acid (III)gt acetic acid (IV) gt trifluoroethanol (II)gt ethanol (I) i.e., option (d) is correct.
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