Isomerism and Optical isomerism

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Last updated 12:41 PM on 5/23/26
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7 Terms

1
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What are the 2 types of isomerism

structural and stereoisomerism

2
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What are the types of structural isomerism

  • positional

  • functional

  • positional

3
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what are the types of stereoisomerism

  • geometrical (E-Z isomers)

  • optical isomerism

4
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whats another name for chiral centre

asymmetrical carbon

5
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How does a racemic mixture arise

  • planar carbonyl group

  • equal chance of being attacked from above and below

  • giving equal amounts of both optical enantiomers

6
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what happens to racemic mixtures when shined with plane-polarised light

it will not rotate due to the enantiomers equally rotating in opposite directions causing them to cancel out

no optical activity is seen

7
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what are the effects of different enantiomers of thalidomide

  • one causes birth defects in unborn children

  • another has useful sedative problems