A) \[S+{{O}_{2}}\to S{{O}_{2}}\]
B) \[2S{{O}_{2}}+{{O}_{2}}\to 2S{{O}_{3}}\]
C) \[C+{{O}_{2}}\to C{{O}_{2}}\]
D) All of these
Correct Answer: B
Solution :
Platinised asbestos or vanadium pentaoxide\[({{V}_{2}}{{O}_{5}})\]is used as catalyst in the preparation of sulphur trioxide from\[S{{O}_{2}}\]and oxygen. \[2S{{O}_{2}}+{{O}_{2}}\xrightarrow[or\,{{V}_{2}}{{O}_{5}}]{Pt.\,asbestos}2S{{O}_{3}}+Heat\]
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