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ICSE Class 10 Chemistry 2016 Solved Paper

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State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions :
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Question : 55
Total: 85
zinc sulphate solution.
Solution:  
A gelatinous white precipitate appears which dissolves in excess of NH4‌OH and give a clear transparent colourless solution of tetra amine zinc sulphate.
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