Identify the compound which rotates the plane | vedclass

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Question

(B) compound is optically active if it is chiral,meaning it lacks a plane of symmetry,center of inversion,or an improper axis of rotation.$A$: Trans$-

Vedclass · Accepted Answer

$(2S, 3S)-2,3$-dichlorobutane

Vedclass · Answer

(B) compound is optically active if it is chiral,meaning it lacks a plane of symmetry,center of inversion,or an improper axis of rotation.$A$: Trans$-1,3-$dichlorocyclobutane has a plane of symmetry,so it is achiral.$B$: $(2S, 3S)-2,3$-dichlorobutane is a chiral molecule because it lacks any internal plane of symmetry or center of inversion. Therefore,it is optically active and will rotate plane-polarized light.$C$: $1-$bromo$-2-$fluoro$-3-$chlorobenzene is a planar aromatic molecule,which is achiral.$D$: $CH_2ClF$ is achiral because it has a plane of symmetry (the plane containing the $C, Cl, F$ atoms).

Identify the compound which rotates the plane-polarized light.

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