Define pH scale. Draw a figure showing variation of pH with the change in concentration of H+ (aq) and OH-(aq) ions.

Question

(i) Define pH scale. Draw a figure showing variation of pH with the change in concentration of H⁺ (aq) and OH^-(aq) ions. 

(ii) Mention the range of pH of acidic solution, basic solution and neutral solution respectively.

Answer 1

(i) Scale for measuring [H⁺] concentration in a solution is called pH scale.

(ii) pH of Neutral solution is 7

pH of Acidic solution is 0 to below 7

pH of Basic solution is 7 to 14