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Which of the following compound will hav...

Which of the following compound will have the smallest `pK_(a)` value ?

A

Benzoic aci

B

Formic acid

C

Acetic acid

D

Phenylacetic acid.

Text Solution

Verified by Experts

The correct Answer is:
B
Smaller the `pK_(a)` value stronger is the acid. As, out of the given acids, formic acid is the strongest acid, its `pK_(a)` will be smallest.
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