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The pK(a) values of four carboxylic acid...

The `pK_(a)` values of four carboxylic acids are given below.
Identify the weakest carboxylic acid.

A

4.89

B

1.28

C

4.76

D

2.56

Text Solution

Verified by Experts

The correct Answer is:
A
`pK_(a) alpha 1`/Acidity i.e., higher the value of `p^(K_(a))`, lesser the acidity of the compound.
Carboxylic acid with `p^(K_(a))` 4.89 will be the weakest acid.
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