Question

A solution of $pH=2$ is more acidic than one with pH 6 by a factor of:

• A. 4000
• B. 2
• C. 10000
• D. 8000

Answer 1

The correct option is C 10000

$pH=2mean\left[H_3{O}^{+}\right]={10}^{-2}$
and $pH=6mean\left[H_3{O}^{+}\right]={10}^{-6}$
Hence the solution with $pH=2$ is 10000 time more acidic than a solution with $pH=6$.