State your observations when ammonium hydroxide solution is added drop by drop
Compounds (10)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.
Answer
On adding NH4OH solution, the CuSO4 solution first forms a pale blue ppt dissolving in excess to form an ink blue solution.
With zinc sulphate solution, NH4OH solution first forms a gelatinous white ppt which dissolves in excess to form a colourless solution.
- Exam Year: 2016