A-LevelChemistryChemical bonding9701/12 · Oct/Nov 2017 · Q41 Mark

Ethane burns in oxygen to produce carbon dioxide and water vapour. Which bond angles are present in the molecules of ethane and its combustion products?

Aethane: 90°, combustion products: 104.5° and 180°

Bethane: 90°, combustion products: 109.5° and 120°

Cethane: 109.5°, combustion products: 104.5° and 180°

Dethane: 109.5°, combustion products: 109.5° and 180°

✓ Correct answer

C: ethane: 109.5°, combustion products: 104.5° and 180°

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Topic: Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2017 Paper 1 Variant 2, question 4.

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