(C) In an ethane molecule $(CH_3-CH_3)$,the carbon-carbon bond is a single sigma $(\sigma)$ bond.Because the sigma $(\sigma)$ bond is formed by the he

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Rotation around carbon-carbon bond in ethane molecule is possible because of cylindrical symmetry of sigma $(\sigma)$ bond between carbon-carbon atoms.

(C) In an ethane molecule $(CH_3-CH_3)$,the carbon-carbon bond is a single sigma $(\sigma)$ bond.Because the sigma $(\sigma)$ bond is formed by the head-on overlap of orbitals,it possesses cylindrical symmetry along the internuclear axis.This cylindrical symmetry allows for free rotation around the carbon-carbon single bond,leading to different conformational isomers.

Class 11 Chemistry 2 Organic Chemistry: Isomerism Conformational isomerism

Easy

The correct statement regarding ethane conformation is:

NEET 2017 All NEET

A
Rotation around carbon-carbon bond in ethane molecule is not possible,because ethane molecule contains a pi $(\pi)$ bond between the carbon and carbon and ethane has very low melting point.
B
Rotation around carbon-carbon bond in ethane molecule is not possible,because ethane molecule contains both sigma $(\sigma)$ bond,and pi $(\pi)$ bond between the carbon and carbon.
C
Rotation around carbon-carbon bond in ethane molecule is possible because of cylindrical symmetry of sigma $(\sigma)$ bond between carbon-carbon atoms.
D
Rotation around carbon-carbon bond in ethane molecule is not possible,because ethane molecule contains both sigma $(\sigma)$ bond and pi $(\pi)$ bond between the carbon and carbon and ethane has very high boiling point.