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

Q. Assertion: On mixing equal volumes of 1 M

H C l

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which are parts of acidic buffer.

Q. Aqueous solution of

H N O_{3}, K O H, C H_{3} C O O H

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C H_{3} C O O N a

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. One or more of the following operations will not change pH
I : diluting the mixture ten times
II : adding some HCl
III : adding some NaOH
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C H_{3} C O O N a

C H_{3} C O O H

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Select correct alternate.

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