NEET2005ChemistryGeneral Organic ChemistryActual
Which one of the following pairs represents stetreoisomerism?
Options
- AStructural isomerism and geometric isomerism
- BOptical isomerism and geometric isomerism
- CChain isomerism and rotational isomerism
- DLinkage isomerism and geometric isomerism
Correct answer
B. Optical isomerism and geometric isomerism
Step-by-step solution
Types of stereoisomerism are optical isomerism and geometrical isomerism. (Ref. to Fig. 27.1) Related Theory Diastereomers which differ in only one stereocenter (out of two or more) are called epimers. D-glucose and D-galactose can therefore be refered to as epimers as well as diastereomers.