Assertion (A): An aqueous solution of ammonium acetate acts as a buffer solution.
Reason (R) : A buffer solution reacts with small quantities of hydrogen or hydroxy ions and keps the `pH` almost same.

Options

A. If both (A) and (R) are correc, and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If (A) is incorrect, but (R) is correct.

Answer

B

Explanation

`(A)` is correct because aqueous solution of salt of `W_(A)` and `W_(B)` acts as buffer.
`(R)` is correc. Buffer resits the change in `pH` on addition of small amount of `S_(A)` or `S_(B)`. But it is not the correct explanant of `(A)`.