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ICSE Class 10 Chemistry 2016 Solved Paper

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Question : 64
Total: 85
The equation 4NH3+5O2→4‌NO+ 6H2O , represents the catalytic oxidation of ammonia. If 100cm3 of ammonia is used calculate the volume of oxygen required to oxidise the ammonia completely.
Solution:  
4NH3+5O2→4‌NO+6H2O
4‌Vol.:5‌Vol.
If 4 volumes of NH3 requires 5‌vol . of O2
Then 100cm3 of NH3 requires =‌
5
4
×100
=125cm3‌ oxygen. ‌
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