Chemistry - STEREO ISOMERISM Question with Solution | TestHub

ChemistrySTEREO ISOMERISMCALCULATION OF TOTAL STEREOISOMERSMedium2 minQB
ChemistryMediumsingle choice

The number of stereoisomers of Fenchone which can exist are:

structure

Options:

Answer:
C
Solution:

Ans. (C) 2.

Sol. Fenchone has two stereocentres (the two bridgehead carbons), but the rigid bicyclic skeleton permits only one relative arrangement (the alternative bridgehead configuration cannot exist). Fenchone therefore exists only as one enantiomeric pair : 2 stereoisomers.

Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:CALCULATION OF TOTAL STEREOISOMERS
⏱ 2mℹ️ Source: QB

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