CourseCourseConceptConcept

CAIE IGCSE Chemistry 11.1.6 An Unsaturated Compound Has Molecules Questions

Work through real CAIE IGCSE Chemistry questions to define unsaturation and identify hydrocarbons containing carbon–carbon double or triple bonds.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • define an unsaturated compound by stating that one or more carbon–carbon bonds are not single bonds
  • identify unsaturated hydrocarbons from displayed structures or formulae containing carbon–carbon multiple bonds

CAIE IGCSE Chemistry 11.1.6 An Unsaturated Compound Has Molecules Questions question 1

[Maximum number: 1]

Which statement about unsaturated hydrocarbons is correct?

A

CH3CH2CH=CHCH3\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}=\mathrm{CHCH}_{3} is an unsaturated hydrocarbon.

B

Ethene has more hydrogen atoms per molecule than ethane.

C

Unsaturated hydrocarbons have double bonds between carbon and hydrogen atoms.

D

Unsaturated hydrocarbons turn aqueous bromine from colourless to brown.

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