Q. $pK_{a}$ or a weak acid is defined as
A) $\log{\ K}_{a}$
B) $\frac{1}{\log K_{a}}$
C) $log\ \frac{1}{K_{a}}$
D) $- log\ \frac{1}{K_{a}}$
Explanation
(c)
$pK_{a} = - \log{K_{a} = \log\frac{1}{K_{a}}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.