The values of dissociation constants of some acids (at 25 ,^o C) … - Vidyadip

MCQ

The values of dissociation constants of some acids (at ${25\,^o}C$) are as follows. Indicate which is the strongest acid in water

✓
$1.4 \times {10^{ - 2}}$
B
$1.6 \times {10^{ - 4}}$
C
$4.4 \times {10^{ - 10}}$
D
$4.3 \times {10^{ - 7}}$

✓

Answer

Correct option: A.

$1.4 \times {10^{ - 2}}$

(a) More is ${K_a}$, lesser is $p{K_a}\,(p{K_a} = - \log {K_a})$ more is acidic strength.

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