(a)
Interpretation:
The given compound can exhibit optical activity. The chiral centres have to be identified in the compound.
Concept Introduction:
The isomers which are mirror images of each other and are non-superimposable are said to be optical isomers and the isomerism is said to be optical isomerism. The optical isomers are also called as enantiomers. The optical isomers which rotates the plane-polarized light are optically active.
The optical isomers are asymmetric and plane of symmetry will be absent. An organic molecule is said to be chiral when it is bonded to four different groups and is asymmetric. The carbon atom bonded to four different groups is said to be chiral carbon or asymmetric carbon. An organic compound is said to be optically active when it contains at least one chiral center.
(b)
Interpretation:
The given compound can exhibit optical activity. The chiral center has to be identified in the compound.
Concept Introduction:
The isomers which are mirror images of each other and are non-superimposable are said to be optical isomers and the isomerism is said to be optical isomerism. The optical isomers are also called as enantiomers. The optical isomers which rotates the plane-polarized light are optically active.
The optical isomers are asymmetric and plane of symmetry will be absent. An organic molecule is said to be chiral when it is bonded to four different groups and is asymmetric. The carbon atom bonded to four different groups is said to be chiral carbon or asymmetric carbon. An organic compound is said to be optically active when it contains at least one chiral center.

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Chapter 15 Solutions
CHEMISTRY THE MOLECULAR NATURE OF MATTER
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