O-LevelChemistryMetals & Reactivity5070/12 · May/June 2021 · Q291 Mark

Nickel is a transition element. Which properties does it have? 1 It can act as a catalyst. 2 It conducts electricity when molten. 3 It forms coloured compounds. 4 It has only one oxidation state in its compounds.

A1, 2 and 3

B1, 3 and 4

C1 and 2 only

D1 and 3 only

✓ Correct answer

A: 1, 2 and 3

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 29.

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