Chemistry - STEREO ISOMERISM Question with Solution | TestHub
ChemistrySTEREO ISOMERISMELEMENT OF SYMMETRYEasy2 minQB
ChemistryEasymultiple choice
Which of the following conformer has presence of plane of symmetry?
Options:(select one or more)
Answer:
A, D
Solution:
The conformers are Newman projections of 1,2-dibromoethane.
(A) the anti conformer :
The plane containing Br-C-C-Br bisects the H-C-H angles on both carbons, so a plane of symmetry is present.
(B) the gauche conformer : no plane of symmetry.
(C) an eclipsed conformer in which Br eclipses H : no plane of symmetry.
(D) the fully eclipsed conformer (Br eclipsing Br) :
The vertical plane through the two Br atoms reflects the eclipsed H/H pairs into each other, so a plane of symmetry is present.
Hence (A) and (D).
Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:ELEMENT OF SYMMETRY
⏱ 2mℹ️ Source: QB
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