Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMCHIRAL CENTRE AND CHIRAL MOLECULESHard2 minQB
ChemistryHardsingle choice
Which of the following compounds have chiral centers?
(a) CH3CH2CH(Cl)CH3 (b) CH3CH2CH(CH3)CH3 (c) CH3CH2C(CH3)(Br)CH2CH2CH3
(d) CH3CH2OH (e) CH3CH2CH(Br)CH2CH3 (f) CH2=CHCH(NH2)CH3
Options:
Answer:
B
Solution:
A chiral centre is a carbon that bears four different groups.
(a) C-2 bears H, Cl, CH3 and C2H5 : chiral centre present.
(b) C-2 bears two identical CH3 groups : no chiral centre.
(c) C-3 bears CH3, Br, C2H5 and n-C3H7 : chiral centre present.
(d) No carbon bears four different groups : no chiral centre.
(e) C-3 bears two identical C2H5 groups : no chiral centre.
(f) The carbon bearing NH2 carries H, NH2, CH3 and CH=CH2 : chiral centre present.
Ans. Only (a), (c) and (f) have chirality centre (chiral carbon).
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:CHIRAL CENTRE AND CHIRAL MOLECULES
⏱ 2mℹ️ Source: QB
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