Question

Aqueous solution of copper sulphate is acidic in nature,why?

Answer 1

Answer:

Copper sulphate hydrolyse in water to give cupric hydroxide which is weak base and sulphuric acid which is strong acid. So hydrogen ion is more than hydroxyl ion in water.As a result the solution is acidic. The release of H+ ions by hydrolysis makes the solution distinctly acidic.

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Answer 2

Answer:

(A) acidic

Reason : Aqueous solution of copper sulphate(CuSO4) is acidic in nature, as when copper sulphate on dissolving with water, following chemical reaction takes place :

CuSO4+ 2H2O → Cu(OH)2+ H2SO4

As we can see, copper(2) hydroxide(Cu(OH)2) and sulphuric acid(H2SO4) is generated in this chemical reaction.Copper hydroxide is a weak base whereas sulphuric acid is a very strong acid which results into increase in acidity of the solution.

Thus, the aqueous solution of copper sulphate is acidic in nature.

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