O-LevelChemistryRates of Reaction5070/11 · Oct/Nov 2011 · Q311 Mark

What is the purpose of vanadium(V) oxide in the Contact Process?

AIt oxidises sulfur to sulfur dioxide.

BIt oxidises sulfur to sulfur trioxide.

CIt speeds up the conversion of sulfur dioxide into sulfur trioxide.

DIt speeds up the conversion of sulfur trioxide into sulfuric acid.

✓ Correct answer

C: It speeds up the conversion of sulfur dioxide into sulfur trioxide.

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Topic: Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2011 Paper 1 Variant 1, question 31.

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