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in Compounds of Non-Metals by (37.7k points)
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The chemical equation of a stage in the industrial preparation of sulphuric acid is given below.

2SO2 + O2 ⇌ 2SO3 + Heat 

a. Which is the catalyst used in this reaction? 

b. What is the influence of the catalyst in equilibrium?

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a. Vanadium pentoxide / V2O5 

b. Catalyst increases the rate of both the forward and backward reactions to the same extent.

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