O-LevelChemistryBonding & Structure5070/11 · May/June 2019 · Q61 Mark

Diamond and graphite are two different forms of the element carbon. They each have different uses. Which row is correct?

Ause: to cut glass: diamond, as an electrode: diamond, as a lubricant: graphite

Buse: to cut glass: diamond, as an electrode: graphite, as a lubricant: graphite

Cuse: to cut glass: graphite, as an electrode: diamond, as a lubricant: diamond

Duse: to cut glass: graphite, as an electrode: graphite, as a lubricant: diamond

✓ Correct answer

B: use: to cut glass: diamond, as an electrode: graphite, as a lubricant: graphite

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2019 Paper 1 Variant 1, question 6.

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