p K_a of a weak acid is defined as - Vidyadip

MCQ

$p{K_a}$ of a weak acid is defined as

A
$log_{10}{K_a}$
B
$\frac{1}{{lo{g_{10}}{K_a}}}$
✓
$log _{10}\frac{1}{{{K_a}}}$
D
$-log_{10}\frac{1}{{{K_a}}}$

✓

Answer

Correct option: C.

$log _{10}\frac{1}{{{K_a}}}$

(c) $p{K_a} = {\log _{10}}\frac{1}{{{K_a}}}$

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