For question two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion.
(c) A is true, but R is false.
(d) A is false, but R is true.
Assertion: Higher the H+ ion concentration, lower is the pH value.
Reason: The pH of a neutral solution = 7, that of a basic solution< 7 and that of an acidic solution> 7.
.(c) A is true, but R is false.
Explanation:
Higher the H+ ion concentration, lower is the pH value. The pH value less than 7 represents an acidic solution and value more than 7 represents a basic solution.