State your observations when Ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions:
Copper sulphate solution.
Zinc sulphate solution.
Part 1: Addition of Ammonium hydroxide with Copper sulphate solution:-
Part 2: Addition of Ammonium chloride with Zinc sulphate solution:-
Therefore, when Ammonium hydroxide solution is added drop by drop and then in excess to Copper sulphate solution it forms a pale blue ppt and then turns deep blue, whereas, when Ammonium hydroxide solution is added drop by drop and then in excess to Zinc sulphate solution it forms a white gelatinous ppt and then turns colorless.