What is the catalyst used in contact process in the conversion of Sulphur dioxide to Sulphur trioxide?(a) Finely divided iron(b) Molybdenum(c) Vanadium pentoxide(d) PlatinumI have been asked this question in final exam.Origin of the question is P-Block Elements topic in section P-Block Elements of Chemistry – Class 12

What is the catalyst used in contact process in the conversion of Sulp

1.	What is the catalyst used in contact process in the conversion of Sulphur dioxide to Sulphur trioxide?(a) Finely divided iron(b) Molybdenum(c) Vanadium pentoxide(d) PlatinumI have been asked this question in final exam.Origin of the question is P-Block Elements topic in section P-Block Elements of Chemistry – Class 12
Answer» The CORRECT choice is (c) VANADIUM pentoxide To explain: After burning SULPHUR in the presence of oxygen the formed Sulphur DIOXIDE needs to be reacted with oxygen to form Sulphur trioxide. It is an exothermic reaction and vanadium pentoxide is USED as the catalyst.

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