# For the following Assertion and Reason,

Question:

For the following Assertion and Reason, the correct option is :

Assertion : The $\mathrm{pH}$ of water increases with increase in temperature.

Reason : The dissociation of water into $\mathrm{H}^{+}$and $\mathrm{OH}^{-}$is an exothermic reaction.

1. Both assertion and reason are true, but the reason is not the correct explanation for the assertion.

2. Both assertion and reason are false.

3. Assertion is not true, but reason is true.

4. Both assertion and reason are true, and the reason is the correct explanation for the assertion.

Correct Option: , 2

Solution: