Q. The pH of a solution is 4. The hydrogen ion concentration of the solution in mol/L is
A) 9.5
B) $10^{- 4}$
C) $10^{4}$
D) $10^{- 2}$
Explanation
(b)
$\left\lbrack H^{+} \right\rbrack = 10^{- pH} = 10^{- 4}\ M$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.