Question

Acidic buffer is made up of ?

• A. Weak base and weak acid
• B. Weak acid and its conjugate salt with weak base
• C. Strong acid and its conjugate salt
• D. Weak acid and its conjugate salt with strong base

Answer 1

The correct option is D Weak acid and its conjugate salt with strong base

Acidic buffer are solution of a mixture of weak acid and salt of its conjugate base with a strong base.
for example- $C{H}_{3}COOHandC{H}_{3}CO{O}^{-}N{a}^{+}$ is acidic buffer because it is a mixture of weak acid $\left(C{H}_{3}COOH\right)$ and its salt $\left(C{H}_{3}CO{O}^{-}N{a}^{+}\right)$with strong base $\left(NaOH\right)$.