Question

Define pH value .what is the pH of pure water?

Answer 1

pH is a measure of hydrogen ion concentration, a measure of the acidity or alkalinity of a solution. The pH scale usually ranges from 0 to 14. ... A pH level of 7.0 at 25°C is defined as "neutral" because the concentration of H3O+ equals the concentration of OH− in pure water.

Answer 2

The p stands for potenz in German meaning power

On the pH scale pH generally from 0 to 14

pH indicates number which shows acidic and basic nature of solution

The pH of pure water is 7

Hope it will help you