A-LevelChemistryHalogen derivatives9701/12 · Oct/Nov 2014 · Q221 Mark

1,1-dichloropropane reacts with aqueous sodium hydroxide in a series of steps to give propanal. CH₃CH₂CHCl₂ NaOH(aq) CH₃CH₂CHO Which term describes the first step of this reaction?

Aaddition

Belimination

Coxidation

Dsubstitution

✓ Correct answer

D: substitution

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Topic: Halogen derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 2, question 22.

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