Solved: CHEMISTRY Question for NEET

NEET CHEMISTRYEasy

Among the following pairs of solutions, the one which is not an acidic buffer is:

$HClO_4$ and $NaClO_4$

$CH_3COOH$ and $CH_3COONa$

$H_2CO_3$ and $Na_2CO_3$

$H_3PO_4$ and $Na_3PO_4$

An acidic buffer solution is prepared by mixing a weak acid and its salt with a strong base .

$CH_3COOH$ , $H_2CO_3$ , and $H_3PO_4$ are all weak acids, and their corresponding sodium salts will form acidic buffer solutions.
$HClO_4$ (perchloric acid), on the other hand, is a very strong acid . A mixture of a strong acid and its salt does not act as a buffer solution. Therefore, $HClO_4$ and $NaClO_4$ is not an acidic buffer.

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