Chemistry · EQUILIBRIUM

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The pH of pure water at 298 K is equal to 7. Reason (R): As the temperature of pure water increases, its pH increases above 7. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.