In a solution of pH = 5, more acid is added in order to reduce the pH = 2. The increase in hydrogen ions concentration is

Options

A. 100 times
B. 1000 times
C. 3 times
D. 5 times

Answer

B

Explanation

`[H^(+)]_(I) =10^(-5) [H^(+)]_("II") =10^(-2)`
Thus increase in `[H^(+)] = (10^(-2))/(10^(-5)) = 1000 ` times .