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Question

In order to produce sulphuric acid efficiently, SO2 gas undergoes oxidation in presence of catalyst X at a temperature of Y degree Celsius. What could be X and Y?


A
X: V2O5; Y: 100oC
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B
X: V2O5; Y: 400oC
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C

X: P2O5; Y: 400oC

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D
X: P2O5; Y: 600oC
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Solution

The correct option is B X: V2O5; Y: 400oC
The process of oxidation of sulphur dioxide to sulphur trioxide is a reversible reaction.Therefore to obtain better yields, the reaction is performed in a favourable conditions.

So, the reaction is performed at 400oCtemperature and high pressure in presence of a suitable catalyst like platinum or vanadium pentoxide.

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