O-LevelChemistryMetals & Reactivity5070/12 · Oct/Nov 2019 · Q241 Mark

The ions of metal X react with aqueous potassium iodide. 2X2+(aq) + 4I-(aq) → 2XI(s) + I2(aq) coloured From this information, it can be deduced that X is most likely a ......1...... metal and the X2+(aq) ions are ......2....... Which words correctly complete gaps 1 and 2?

A1: Group II, 2: oxidised

B1: Group II, 2: reduced

C1: transition, 2: oxidised

D1: transition, 2: reduced

✓ Correct answer

D: 1: transition, 2: reduced

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 2, question 24.

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