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Iron II Chloride

The pH valu...

Question

The $p H$ values of aqueous solutions of which of the following compounds does not change on dilution?

A

P h C O O N H_{4}

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B

N H_{4} C N

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C

H C O O N a

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D

N H_{4} C l

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Solution

The correct options are
A $P h C O O N H_{4}$
B $N H_{4} C N$
$N H_{4} C N$ , $P h C O O N H_{4}$ are weak acid + weak base and so, their hydrolysis doesnot even depend upon concentration of solutions. So, pH values of aqueous solutions donot change on dilution.

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