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A-LevelChemistryHalogen derivativesMay/June 2022Paper 1 Q281 Mark

Compound Z, C₇H₁₃Br, has two chiral centres. A sample of Z contains all four possible optical isomers. This sample of Z reacts with hot ethanolic NaOH to produce a mixture of only three isomers. Two of these isomers are optical isomers of each other. What could be the formula of Z?

ASkeletal formula of 3-bromo-2-methylhexane.
BSkeletal formula of 1-bromo-2,2-dimethylcyclopentane.
CSkeletal formula of 1-bromo-3-methylcyclopentane.
DSkeletal formula of 2-bromo-2,4-dimethylpentane.

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The correct answer is A. This question tests the candidate's understanding of halogen derivatives within the Chemistrysyllabus. The examiner's mark scheme requires...

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About This A-Level Chemistry Question

This multiple-choice question appeared in the Cambridge A-Level Chemistry (9701) May/June 2022 examination, Paper 1 Variant 2. It tests the topic of Halogen derivatives and is worth 1 mark.

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