ICSE Class 10 Chemistry 2017 Solved Paper

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Question : 45
Total: 86
How will you distinguish between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?
Solution:  
On adding sodium hydroxide to copper sulphate solution - bluish white ppt is formed which is insoluble.
On adding ammoniuma hydroxide to copper sulphate solution - bluish white ppt is formed which is soluble in excess and form deep blue solution.
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