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CAIE A-Level Chemistry AS 2.3.3 Terms Empirical and Molecular Formula Questions

Practise defining empirical and molecular formulae, identifying simplest atom ratios and distinguishing them from actual molecular compositions.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • Define and use empirical and molecular formulae to represent simplest and actual atom ratios in compounds.

CAIE A-Level Chemistry AS 2.3.3 Terms Empirical and Molecular Formula Questions question 1

[Maximum number: 1]

Which formula represents the empirical formula of a compound?

A

C2H4O\mathrm{C}_{2} \mathrm{H}_{4} \mathrm{O}

B

C2H4O2\mathrm{C}_{2} \mathrm{H}_{4} \mathrm{O}_{2}

C

C6H12\mathrm{C}_{6} \mathrm{H}_{12}

D

H2O2\mathrm{H}_{2} \mathrm{O}_{2}

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