O-LevelChemistryMetals & Reactivity5070/11 · May/June 2018 · Q111 Mark

Two characteristics of a gas, G, are given. • G reduces copper(II) oxide to a pink-brown solid. • 1.4 g of G has a volume of 1.2 dm³ at room temperature and pressure. What is G?

Acarbon monoxide, CO

Bhydrogen, H₂

Cnitrogen, N₂

Dnitrogen monoxide, NO

✓ Correct answer

A: carbon monoxide, CO

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2018 Paper 1 Variant 1, question 11.

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