Which of the following molecules can exhibit | vedclass

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Question

(B) Optical activity is exhibited by molecules that possess at least one chiral center (a carbon atom bonded to four different groups). $(a)$ $CH_3-CH

Vedclass · Accepted Answer

$2-$bromobutane

Vedclass · Answer

(B) Optical activity is exhibited by molecules that possess at least one chiral center (a carbon atom bonded to four different groups). $(a)$ $CH_3-CH_2-CH_2-Br$ ($1-$bromopropane): No chiral center is present,so it is optically inactive. $(b)$ $CH_3-CH(Br)-CH_2-CH_3$ ($2-$bromobutane): The carbon at position $2$ is bonded to four different groups $(-H, -CH_3, -CH_2CH_3, -Br)$,making it a chiral center. Thus,it exhibits optical activity. $(c)$ $CH_3-CH_2-CH(Br)-CH_2-CH_3$ ($3-$bromopentane): The central carbon is bonded to two identical ethyl groups,so it is achiral and optically inactive. $(d)$ Bromocyclohexane: The molecule has a plane of symmetry passing through the $C-Br$ bond,making it achiral and optically inactive.

Which of the following molecules can exhibit optical activity?

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