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Grade 12th passOrganic Chemistry

Why pent-2,3-diene and biphenyls shows optical isomerism without chirality?plea pl explain in a detailed way sir..

Profile image of B pavan Sudheer
7 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
7 Years ago
First draw its structure and identify the stereocentres.
If it exists and has plane os symetry then it would not called as optical isomer.
And this molecule is symmetrical about the central Carbon atom.
The no. os sterocentres are 2.
Hence for the even no. of stereocentres, No. of optical active isomers = > 2^(n-1) => 2^1 = 2.

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