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Transition metals (A-level only)

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Question 14

Which of the following chemical processes involves a homogeneous catalyst?

A

The reduction of NO(g)\text{NO}(\text{g})NO(g) by CO(g)\text{CO}(\text{g})CO(g) over a solid platinum-palladium catalytic converter.

B

The reaction of gaseous SO2\text{SO}_2SO2​ and O2\text{O}_2O2​ in the Contact process using a solid vanadium(V) oxide catalyst.

C

The autocatalytic oxidation of aqueous ethanedioate ions (C2O42−\text{C}_2\text{O}_4^{2-}C2​O42−​) by acidified manganate(VII) ions (MnO4−\text{MnO}_4^-MnO4−​).

D

The industrial hardening of vegetable oil using hydrogen gas and a solid nickel catalyst.

Markscheme

Transition metals (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Transition metals (A-level only)

63 exam-style questions on AQA A Level Chemistry Transition metals (A-level only), covering General properties of transition metals (A-level only), Substitution reactions (A-level only), Shapes of complex ions (A-level only), Formation of coloured ions (A-level only), Variable oxidation states (A-level only), and Catalysts (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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