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ICSE Class 10 Chemistry 2022 Paper

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SECTION - I
Choose the correct answers to the questions from the given options.
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Question : 8 of 55
Marks: +1, -0
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)→450∘CV2O52SO32 \mathrm{SO}_2(\mathrm{g}) + \mathrm{O}_2(\mathrm{g}) \xrightarrow[450^{\circ}\mathrm{C}]{\mathrm{V}_2\mathrm{O}_5} 2 \mathrm{SO}_3
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