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Acidic Buffer Action

Which one of ...

Question

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

A

H_{2} C O_{3}

and

N a_{2} C O_{3}

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B

H_{3} P O_{4}

and

N a_{3} P O_{4}

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C

H C l O_{4}

and

N a C l O_{4}

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D

C H_{3} C O O H

and

C H_{3} C O O N a

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Solution

The correct option is C $H C l O_{4}$ and $N a C l O_{4}$
$H C l O_{4}$ and $N a C l O_{4}$ cannot act as an acidic buffer since perchlorate acid is a strong acid.
All other options have weak acids along with the salt of their conjugate bases, making them acidic buffers.

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