Which one of the following statements is not true ? | CGP Edu

Chemistry Ionic Equilibrium Common Ion Effect, Isohydric Solutions, Solubility Product, Ionic Product of Water and Salt Hydrolysis Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Which one of the following statements is not true ?

A

The conjugate base of H 2 PO 4 – is HPO 4 2– .

B

pH + pOH = 14 for all aqueous solutions at 25ºC.

C

The pH of 1 × 10 –8 M HCl is 8.

D

96, 500 coulombs of electricity when passed through a CuSO 4 solution deposits 1 gram equivalent of copper at the cathode.

Text Solution

Verified by Experts

The correct answer is:

We know that for acids at 25ºC, pH must be less than 7.

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