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O-LevelChemistryStoichiometry5070/11 · Oct/Nov 2016 · Q111 Mark

A compound containing only the elements carbon and hydrogen has 80.0% by mass of carbon. What is its empirical formula?

AC₃H
BCH₃
CCH₄
DC₂H₆

✓ Correct answer

B: CH₃

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About this question

Topic
Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2016 Paper 1 Variant 1, question 11.

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