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  4. Assertion: Mixture of CH3COOH and CH3COONH4 is an example of acidic buffer. Reason: Acidic buffer contains equimolar mixture of weak acid and its salt with weak base.

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Q. Assertion : Mixture of $CH_3COOH$ and $CH_3COONH_4$ is an example of acidic buffer.
Reason : Acidic buffer contains equimolar mixture of weak acid and its salt with weak base.

AIIMSAIIMS 2007Equilibrium

Solution:

$CH _{3} COOH / CH _{3} COONH _{4}$ is not an example of acidic buffer. Acidic buffer contains equimolar mixture of weak acid and its salt with strong base.

e. g. $CH _{2} COOH / CH _{3} COONa$