Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMELEMENT OF SYMMETRYEasy2 minQB
ChemistryEasysingle choice
Cis-1,2-dichloro cyclohexane is optically inactive due to
Options:
Answer:
C
Solution:
Ans. (C) External compensation.
Sol. In a chair conformation cis-1,2-dichlorocyclohexane has no plane of symmetry: each chair is chiral (one Cl axial, one equatorial). Ring flipping converts it into the mirror-image chair, and the two enantiomeric conformations are present in equal amounts and interconvert rapidly, so the rotation cancels by external compensation.
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:ELEMENT OF SYMMETRY
⏱ 2mℹ️ Source: QB
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