Question

what is mean by pH scale ​

Answer 1

Answer:

In chemistry, pH is a scale used to specify the acidity or basicity of an aqueous solution.

Answer 2

$\huge\underline\mathtt\red{Answer:}$

pH is a measure of the acidity or basicity of a solution. It is defined as the co-logarithm of the activity of the liquefied hydrogen ions. The activity coefficient of hydrogen ion has been found experimentally.