A-LevelChemistryHalogen derivatives9701/12 · Oct/Nov 2022 · Q311 Mark

For which reaction will the major organic product have the lowest relative molecular mass?

ABromoethane is heated under reflux with an aqueous solution of sodium hydroxide.

BBromoethane is heated under reflux with a solution of sodium cyanide in ethanol.

C2-bromopropane is heated under reflux with an aqueous solution of sodium hydroxide.

D2-bromopropane is heated under reflux with concentrated ethanolic sodium hydroxide.

✓ Correct answer

D: 2-bromopropane is heated under reflux with concentrated ethanolic sodium hydroxide.

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Topic: Halogen derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2022 Paper 1 Variant 2, question 31.

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