Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMCHIRAL CENTRE AND CHIRAL MOLECULESMedium2 minQB
ChemistryMediumsingle choice
Which of the following compounds has an asymmetric center?
(a) CH3CH2CH(F)CH3 (b) CH3CH2CH(CH3)CH2CH3 (c) CH3CH2CH(Cl)CH2CH2CH3
(d) (CH3)2CHCH2OH (e) CH3CH(NH2)CH2CH3 (f) CH3CH2CH2CH3
Options:
Answer:
B
Solution:
An asymmetric center is a carbon attached to four different groups.
(a) C2 of 2-fluorobutane carries H, F, CH3 and C2H5 : asymmetric. (b) C3 of 3-methylpentane carries two identical ethyl groups : not asymmetric. (c) C3 of 3-chlorohexane carries H, Cl, C2H5 and C3H7 : asymmetric. (d) The carbinyl carbon of 2-methylpropan-1-ol carries two methyls : not asymmetric. (e) C2 of butan-2-amine carries H, NH2, CH3 and C2H5 : asymmetric. (f) Butane has no such carbon.
Ans. (B) (a), (c) and (e).
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:CHIRAL CENTRE AND CHIRAL MOLECULES
⏱ 2mℹ️ Source: QB
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