Question

Classify aqueous solutions of the following substances according to their pH into three groups: 7, more than 7, and less than 7.

Common salt, sodium acetate, hydrochloric acid, carbon dioxide, potassium bromide, calcium hydroxide, ammonium chloride, vinegar, sodium carbonate, ammonia, and sulphur dioxide.

Answer 1

pH	Substances
7	Common salt, Potassium bromide
Greater than 7	Sodium acetate, Calcium hydroxide,  Sodium carbonate, Ammonia
Less than 7	Hydrochloric acid, Carbon dioxide, Ammonium chloride, Vinegar, Sulphur dioxide.