Stereochemistry and aromaticity UE Past Papers Questions.

Using a simple chart show the classification of isomers.

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Draw the fisher structures for 2,3-dihydroxybutane based on the following:

1. being meso compound
2. diastereoisomers

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Write the structure of an isomer of which is optically active and assign its configuration.

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Draw Newman projections for;

1. Cyclopentane
2. 1-Chloro,4-methylcyclohexane
3. Cyclobutane

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Deduce all possible stereoisomers of the molecule with following formula

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