Equal volumes of following solutions are mixed, in which ca…

Chemistry Ionic Equilibrium Hydrogen Ion Concentration- pH Scale and Buffer Solution Single Correct MCQ

Published on: August 14, 2026

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

AqeousHCl of pH = 2, aqueous NaOH of pH = 12

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

AqeousNaOH of pH = 12, aqueous NaOH of pH = 10

Aqeous CH 3 COOH of pH = 5, aqueous NH 3 of pH = 9. [Ka (CH 3 COOH) = Kb (NH 3 )]

Text Solution

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The correct answer is:

CHECK THE SOLUTION.

(a, d)
and

This leads complete neutralisation

and

This leads complete neutralisation

So,

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