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ICSE Class 10 Chemistry 2022 Paper

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Identify the acid in each case :
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Question : 54 of 55
Marks: +1, -0
The acid formed when potassium nitrate reacts with a least volatile acid.
Solution:  
The acid formed when potassium nitrate reacts with least volatile acid (Sulphuric acid) is Nitric acid.
KNO3+H2SO4→KHSO4+HNO3\mathrm{KNO}_3 + \mathrm{H}_2\mathrm{SO}_4 \rightarrow \mathrm{KHSO}_4 + \mathrm{HNO}_3
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