Question:
Copper sulphate dissolves in ammonical solution to give deep blue colour. The colour is due to the formation of:
Copper sulphate dissolves in ammonical solution to give deep blue colour. The colour is due to the formation of:
Updated On: Sep 19, 2025
- $ C{{u}^{2+}}ions $
- $ Cu{{(OH)}_{2}} $
- $ {{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}} $
- none of these
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The Correct Option is C
Solution and Explanation
Copper sulphate dissolves in ammonical solution as it forms complex compound with ammonia. $ CuS{{O}_{4}}+4N{{H}_{4}}OH\xrightarrow{{}} $ $ \underset{\text{deep}\,\text{blue}}{\mathop{[Cu{{(N{{H}_{3}})}_{4}}]\,S{{O}_{4}}}}\,+4{{H}_{2}}O $
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