Optical Purity || Enantiomeric Excess

1.Optical Purity||Enantiomeric Excess ||Separation OF Enantiomers (Resolution)||Calculation OF Number OF Optical Isomers

Enantiomerism is shown by

Which of the folowing can exist in enantiomeric forms?

Which of the following will not be able to show optical isomerism (enantiomerism)?

If a mixture of 2-bromobutane has enantiomeric excess of 50% of (+)-bromobutane has

Conditions For Enantiomerism

Dextrororatory bytan -2-ol has a specific rotation [alpha]_(D)^(25) =+13.52^(@) . A sample of butan -2-ol shows a specific rotation [alpha]_(D)^(25)=+6.72^(@) . Calculate the enantiomers excess (or optical purity) of the sample?