Catalysts used in Contact process of manufacture of sulphuric acid are

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${CrO}_{3}$

${Fe}_{2} O_{3}$

$V_{2} O_{5}$

${Cr}_{2} O_{3}$

answer is B.

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Detailed Solution

The industrial method for preparing sulphuric acid in large scale is Contact process. The catalysts that are used in this method is V₂O₅ and platinum.

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