Question

Consider the following solutions of equal concentrations
`{:(A= NH_(4)Cl,,B = CH_(3)COONa),(C = NH_(4)OH,,D = CH_(3)COOH):}`
A buffer solution can be obtained by mixing equal volumes of
A. C and D
B. A and B
C. A and C
D. C and D

Answer 1

Correct Answer - C
Buffer solution can be obtained :
(i) By mixing a weak acid with its salt of a strong base.
e.g. `CH_(3)COOH + CH_(3)COONa`
(ii) By mixing a weak base with its salt of a strong acid.
e.g. `NH_(4)OH + NH_(4)Cl`.