O-LevelChemistryMetals & Reactivity5070/11 · May/June 2013 · Q251 Mark

The sentence describes two metals and their oxides. Metal X could be copper because its oxide is ......1.... and metal Y could be ......2.... because its oxide is amphoteric. Which words correctly complete gaps 1 and 2? 1 | 2 ---|--- acidic | aluminium basic | aluminium acidic | magnesium basic | magnesium

Aacidic aluminium

Bbasic aluminium

Cacidic magnesium

Dbasic magnesium

✓ Correct answer

B: basic aluminium

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2013 Paper 1 Variant 1, question 25.

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