Which acid has least p K_a value - Vidyadip

MCQ

Which acid has least $p{K_a}$ value

✓
$C{l_3}C.COOH$
B
$C{l_2}CH.COOH$
C
$Cl.C{H_2}COOH$
D
$C{H_3}COOH$

✓

Answer

Correct option: A.

$C{l_3}C.COOH$

a
(a) $(C{l_3}C - COOH)$ Trichloroacetic acid has least $pK_a$ value and is most acidic.

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