Question

Assertion: $pH $ of neutral solution is always $7$.
Reason: $pH$ of a solution does not depend upon temperature.

• A. If both Assertion: and Reason: are true and the Reason: is the correct explanation of the Assertion
• B. If both Assertion: and Reason: are true but the Reason: is not the correct explanation of the Assertion
• C. If Assertion: is true but Reason: is false
• D. If both Assertion: and Reason: are false

Answer 1

Answer: (D)

$pH$ of a neutral solution is $7$ at $298\, K$ increasing temperature, more water dissociates, consequently $[H^+ ]$ increases, i.e. $pH$ decreases.