O-LevelChemistryStoichiometry5070/11 · May/June 2013 · Q111 Mark

In an experiment, 1 cm³ of a gaseous hydrocarbon X required 4cm³ of oxygen for complete combustion to give 3 cm³ of carbon dioxide. All gas volumes are measured at r.t.p. Which formula represents X?

AC2H2

BC2H4

CC3H4

DC3H8

✓ Correct answer

C: C3H4

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Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2013 Paper 1 Variant 1, question 11.

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