O-LevelChemistryChemistry of the Environment5070/11 · May/June 2019 · Q241 Mark

A student makes three suggestions about the Haber process and the Contact process. 1 Only one process uses a raw material obtained by fractional distillation of air. 2 Only one process involves the use of a catalyst. 3 The product of each catalysed reaction has a formula of the type XY₃. Which suggestions are correct?

A1 and 2

B1 and 3

C2 only

D3 only

✓ Correct answer

B: 1 and 3

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2019 Paper 1 Variant 1, question 24.

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