O-LevelChemistryOrganic Chemistry5070/12 · May/June 2016 · Q351 Mark

Which statements are correct for alkenes but not for alkanes? 1 They turn aqueous bromine from brown to colourless. 2 Their general formula is CnH2n. 3 They burn in air to form carbon dioxide and water.

A1, 2 and 3

B1 and 2 only

C1 and 3 only

D2 and 3 only

✓ Correct answer

B: 1 and 2 only

Oracle Prep sorts past-paper questions by topic, so you can drill Organic Chemistry and see which topics are most likely to come up next.

Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2016 Paper 1 Variant 2, question 35.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content