Question

The $pH$ of a solution having the $H^{+}$ ion concentration of $1\times {10}^{-2}$ mole/litre is:

• A. 5
• B. 12
• C. 4
• D. 2

Answer 1

The correct option is D 2

As we know, $pH=-\log \left[H^{+}\right]$

Here, $pH=-\log {10}^{-2}$

$=-(-2)\log 10$

$=2$

Option D is correct.