Consider the following mixtures. Which one of the following mixture has a  ${\mathrm{p}}^{\mathrm{H}}=2$

${\mathrm{V}}_{\mathrm{a}}{\mathrm{N}}_{\mathrm{a}}=55\times \frac{1}{10}=5.5$

${\mathrm{V}}_{\mathrm{b}}{\mathrm{N}}_{\mathrm{b}}=45\times \frac{1}{10}=4.5$

$\left[{\mathrm{H}}^{+}\right] = \frac{5.5 - 4.5}{{\mathrm{V}}_{\mathrm{a}} + {\mathrm{V}}_{\mathrm{b}}} = \frac{1}{100} = {10}^{-2} \mathrm{M}$

${\mathrm{p}}^{\mathrm{H}}=2$