Question

Give one example of a salt which gives an aqueous solution having:

pH equal to 7

Answer 1

The KCl is formed from a strong acid, hydrochloric acid (HCl), and a strong base, potassium hydroxide (KOH). Thus, KCl, on hydrolysis, forms equal amounts of H⁺ and OH⁻ ions. Therefore, an aqueous solution of KCl is neutral, with a pH of almost 7.