Optical Isomerism

How many different groups must be attached to a carbon for it to be considered chiral?

• 1

• 2

• 3

• 4

How does optical isomerism affect polarised light?

• Nothing

• Changes the angle of polarisation

• Blocks the light

• Causes the light to change colour.

What do we call optical isomers?

• Geometric Isomers

• Chain Isomers

• Enantiomers

• Position Isomers

What do we call a mixture that has an equal amount of enantiomers?

• Racemate

• Pure

• Buffer

• Concentrated

Why must we avoid racemic mixtures?

• More expensive

• May interact with natural molecules in an unintended fashion.

• Implies reaction failure

• Lowers percentage yield