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ICSE Class 10 Chemistry 2020 Solved Paper

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Distinguish between the following pairs of compounds using a reagent as a chemical test :
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Question : 63
Total: 86
Calcium nitrate and Zinc nitrate solution.
Solution:  
Add few drops of NaOH then Excess
 Calcium nitrate   Zinc nitrate
 White ppt which is insoluble in excess NaOH.  Gelatinous white ppt which dissolves in exess NaOH forming a clear solution.
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