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Question
Which of the following pairs of compounds is a pair of enantiomers ?
Which of the following pairs of compounds is a pair of enantiomers ?
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Solution
The correct option is B
In option (d), one of the isomer has a plane of symmetry so it won't show chirality and hence, it cannot be its enantiomeric pair.
Cyclohexane molecules exist in chair form and they does not have a plane of symmetry in the ring. Both the isomers in option (c) are not mirror images. Hence, they are not enantiomers.
In option (a), both the structures are identical. They have same configuration about the chiral centres.
In (b), both are mirror image along the plane of paper and are not superimposable on each other. So, they are enantiomers.
Hence, (b) is correct.
In option (d), one of the isomer has a plane of symmetry so it won't show chirality and hence, it cannot be its enantiomeric pair.
Cyclohexane molecules exist in chair form and they does not have a plane of symmetry in the ring. Both the isomers in option (c) are not mirror images. Hence, they are not enantiomers.
In option (a), both the structures are identical. They have same configuration about the chiral centres.
In (b), both are mirror image along the plane of paper and are not superimposable on each other. So, they are enantiomers.
Hence, (b) is correct.
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