Question

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

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

Answer 1

Ans7.

SUBSTANCES	pH Value
Solution of Common salt	equal to 7
Solution of Sodium acetate	greater than 7
Solution of Hydrochloric acid	less than 7
Solution of Carbon dioxide	less than 7
Solution of Potassium bromide	equal to 7
Solution of Calcium hydroxide	greater than 7
Solution of Ammonium chloride	less than 7
Solution of Vinegar	less than 7
Solution of Sodium carbonate	greater than 7
Solution of Ammonia	greater than 7
Solution of Sulphur dioxide	less than 7