Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMCHIRAL CENTRE AND CHIRAL MOLECULESEasy2 minQB
ChemistryEasysingle choice
Which of the following compounds have chiral centers?
(a) CH3CH2CH(Br)CH2CH3 (b) CH3CH2CH(CH3)CH2CH3 (c) CH3CH(Cl)CH2CH3
(d) CH3CH(OH)COOH (e) (CH3)2CHCH2OH (f) CH3CH2CH(F)CH3
Options:
Answer:
B
Solution:
A chiral centre is a carbon that bears four different groups.
(a) C-3 bears two identical C2H5 groups : no chiral centre.
(b) C-3 bears two identical C2H5 groups : no chiral centre.
(c) C-2 bears H, Cl, CH3 and C2H5 : chiral centre present.
(d) C-2 bears H, OH, CH3 and COOH : chiral centre present.
(e) No carbon bears four different groups : no chiral centre.
(f) C-2 bears H, F, CH3 and C2H5 : chiral centre present.
Ans. Only (c), (d) and (f) have a chirality centre (chiral carbon).
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:CHIRAL CENTRE AND CHIRAL MOLECULES
⏱ 2mℹ️ Source: QB
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