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Which of the following acids have the lo...

Which of the following acids have the lowest `pK_(a)` value :-

A

`underset(NO_(2))underset(|)CH_(2)-overset(O)overset(||)C-OH`

B

`underset(NO_(2))underset(|)CH_(2)-CH_(2)-overset(O)overset(||)C-OH`

C

`underset(Cl)underset(|)CH_(2)-overset(O)overset(||)C-OH`

D

`CH_(3)-underset(Cl)underset(|)overset(Cl)overset(|)C-overset(O)overset(||)C-OH`

Text Solution

Verified by Experts

The correct Answer is:
D

`CH_(3)-underset(Cl)underset(|)overset(Cl)overset(|)C-COOH,2(-I) groups`
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