question_answer

A buffer solution can be prepared from a mixture of-

[a] Sodium acetate and acetic acid in water

[b] Sodium acetate and hydrochloric acid in water

[c] Ammonia and ammonium chloride in water

[d] Ammonia and sodium hydroxide in water

A) [a], [b]              

B) [b], [c]

C) [c], [d]              

D) [a], [b], [c]