A) Chain isomerism and rotational isomerism
B) Structural isomerism and geometric isomerism
C) Linkage isomerism and geometric isomerism
D) Optical isomerism and geometric isomerism
Correct Answer: D
Solution :
When isomers have the structural formula but differ in the relative arrangement of atoms or groups in space with in the molecule, these are known as sterioisomers and the phenomenon as sterio isomerism. Stereoisomerism is of three types (i) Geometrical isomerism (ii) Optical isomerism (iii) Conformational isomerism.
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