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    				| 1. | State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions:1. copper sulphate solution.2. zinc sulphate solution. | 
| Answer» 1. Bluish white precipitate appears which dissolves in excess of NH4OH and give an inky blue solution of tetra amino copper sulphate. 2. A gelatinous white precipitate appears which dissolves in excess of NH4OH and give a clear transparent colourless solution of tetra amine zinc sulphate. | |