Single Answer MCQ
Q-00019095

What is the primary reason that pure water has a pH of 7?

1

Equal concentration of H+ and OH- ions

2

No ions present

3

Only H2O molecules exist

4

Production of neutral salts

Answer and Solution

Answer

A. Equal concentration of H+ and OH- ions

Solution:

In pure water, the concentrations of H+ ions and OH- ions are equal, resulting in a neutral pH of 7.

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