Which one of the following pairs of solution is not an acidic buffer?

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CH3COOH and CH3COONa

H2CO3 and Na2CO3

H3PO4 and Na3PO4

HClO4 and NaClO4

answer is D.

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Detailed Solution

Acidic buffer is a mixture of a weak acid and its salt with a strong base. HClO4 is a strong acid.

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