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ICSE Class 10 Chemistry 2017 Paper

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SECTION - I
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Question : 4 of 86
Marks: +1, -0
Potassium sulphite on reacting with hydrochloric acid releases .............. gas.
(Cl2,SO2,H2S)(\mathrm{Cl}_2, \mathrm{SO}_2, \mathrm{H}_2\mathrm{S})
Solution:  
SO2\mathrm{SO}_2
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