O-LevelChemistryRates of Reaction5070/12 · May/June 2021 · Q251 Mark

Sulfuric acid is manufactured in the contact process. Several substances are involved in this process, including vanadium(V) oxide and water. Which roles are played by vanadium(V) oxide and water in the contact process?

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Avanadium(V) oxide: catalyst, water: reactant

Bvanadium(V) oxide: catalyst, water: solvent

Cvanadium(V) oxide: reactant, water: reactant

Dvanadium(V) oxide: reactant, water: solvent

✓ Correct answer

A: vanadium(V) oxide: catalyst, water: reactant

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Topic: Rates of Reaction, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 25.

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