The $pH$ of a solution is $9.95$. Calculate the $\left[OH^{-}\right]$ concentration.

The $pH$ of pure water at $80^{\circ} C$ is

Calculate the concentration of $H^{+}$ ions in a solution if $pOH$ is $11$.

At $25 \, ^\circ C$,the $pH$ value of a solution is $6$. The solution is:

The unit of the ionic product of water $K_w$ is:

For the following Assertion and Reason,the correct option is
Assertion : The $pH$ of water increases with increase in temperature.
Reason : The dissociation of water into $H^{+}$ and $OH^{-}$ is an exothermic reaction.