O-LevelChemistryStoichiometry5070/12 · Oct/Nov 2022 · Q371 Mark

The equation shows the reaction that takes place when butanol is completely combusted in air. C₄H₉OH(l) + xO₂(g) → yCO₂(g) + zH₂O(g) What are the values of x, y and z?

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Ax: 4, y: 6, z: 5

Bx: 5, y: 4, z: 6

Cx: 5, y: 6, z: 4

Dx: 6, y: 4, z: 5

✓ Correct answer

D: x: 6, y: 4, z: 5

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Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2022 Paper 1 Variant 2, question 37.

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