ICSE Class 10 Chemistry 2022 Solved Paper

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SECTION - I

Choose the correct answers to the questions from the given options.
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Question : 8
Total: 55
Vanadium pentoxide is used as a catalyst in the preparation of :
Solution:  
(c) Sulphur trioxide gas
Explanation :
In the contact process, Vanadium pentoxide is used as a catalytic oxidation. It converts the mixture of sulphur dioxide and oxygen to sulphur trioxide.
2SO2(g)+O2(g)
V2O5
450C
2SO3
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