Question

For basic solution: $\left\lbrack H^{+} \right\rbrack < \left\lbrack OH^{-} \right\rbrack\text{ and }\left\lbrack H^{+} \right\rbrack < \sqrt{Kw}$

$\therefore P^{H} > P^{OH}\text{ or }P^{H} > \frac{P^{Kw}}{2}\text{ or }P^{OH} < \frac{P^{Kw}}{2}$