Question:
Assertion (A): A solution containing a mixture of acetic acid and sodium
acetate maintains a constant value of pH on the addition of small
amounts of acid or alkali.
Reason (R): A solution containing a mixture of acetic acid and sodium
acetate acts as a buffer solution around pH 4.75.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) Both A and R are false.
Solution:
Option (i) Both A and R are true and R is the correct explanation of A is correct.