Write a short note on pH scale.

Explanation

1) A scale for measuring hydrogen ion concentration in a solution is called pH scale.
2) pH value of a solution is simply a number which indicates the acidic or basic N/Ature of a solution.
3) If pH value= 7, it is a neutral solution pH valuelt 7, it is an acidic solution pH value gt 7, it is a basic solution
4) The range of pH value is from 0 to 14.
5) As the pH value increases from 7 to 14, it represents a decrease in `H_3O^+` ion concen- tration or an increase in `OH^-` ion concentration in the solution.