A solution with a pH of 11 has a $H^{+}$ concentration of:

Question

$\begin{array}{1 1} (a) 1 \times 10^{-11}\; moles/liter \\(b)\;1 \times 10^{-3} moles/liter \\ (c)\;1 \times 10^{11} moles/liter\\ (d)1 \times 10^3 moles/liter \end{array}$