Q. The pH of a 0.001 M NaOH will be
A) 3
B) 2
C) 11
D) 12
Explanation
(c)
0.001 M of NaOH means $\left\lbrack OH^{-} \right\rbrack = 0.001$
$= 10^{- 3}M \Rightarrow pOH = 3$
$pH + pOH = 14 \Rightarrow pH = 14 - 3 = 11$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.