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Equal volumes of following solutions are...

Equal volumes of following solutions are mixed. In which case the pH of resulting solution will be average value of pH of two solutions?

A

Aqueous `HCl` of pH=2, aqueous `NaOH` of pH=12

B

Aqueous HCl of pH=2, aqueous HCl of pH=4

C

Aqueous `NaOH` of pH=12, aqueous `NaOH` of pH=10

D

Aqueous `CH_(3)COOH` of pH=5, aqueous `NH_(3)` of pH=9. `[K_(a)(CH_(3)COOH)=K_(b)(NH_(3))]`

Text Solution

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The correct Answer is:
a,d
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