Question

A sample of compound is considered to be optically pure:

• A. if only one enantiomer is present
• B. if only two enantiomer is present
• C. if the compound is having recimic mixture
• D. none of the above

Answer 1

The correct option is A if only one enantiomer is present

If only one enantiomer is present a compound of a sample is considered to be optically pure because it shows some net rotation as it is not having another isomer of it. It does not show any opposite rotation. When a sample consists

of a mixture of enantiomers, the effect of each enantiomer cancels out,

Hence option A is correct.