A-LevelChemistryHalogen derivatives9701/12 · Oct/Nov 2012 · Q381 Mark

Chloroethane can be formed from bromoethane in two steps. C2H5Br --(step X)--> C2H5OH --(step Y)--> C2H5Cl Which statements about these steps are correct? 1 Step X involves nucleophilic substitution. 2 Hot aqueous sodium hydroxide is the reagent in step X. 3 Hot aqueous sodium chloride is the reagent in step Y.

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A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

B: 1 and 2 only are correct

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Topic: Halogen derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2012 Paper 1 Variant 2, question 38.

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