Optical Isomerism
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9 Terms
Optical isomerism is a form of what type of isomerism?
Stereoisomerism
State what is meant by optical isomers.
Molecules that have the same molecular and structural formula but have mirror images that cannot be superimposed on each other
When do optical isomers occur?
When a carbon in the molecule is bonded to 4 different groups
What name is given to a carbon bonded to 4 different groups?
Chiral carbon/ chiral centre
What symbol is used to indicate a chiral carbon?
*
What is another name for optical isomers?
Enantiomers
State how the different enantiomers of a substance can be identified.
By observing their effect on plane-polarised light
What is a racemic mixture?
A mixture containing equal amount of each of the 2 enantiomers
Why are racemic mixtures optically inactive?
The enantiomers bend the light equally in opposite directions, so the rotation cancels out
Note 
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