MCQ
In the following skew conformation of ethane, $H'-C-C-H"$ dihedral angle is......$^o$
  • A
    $58$
  • B
    $120$
  • $149$
  • D
    $151$

Answer

Correct option: C.
$149$
c
Dihedral angle is then angle between bond pairs present on adjacent atoms.

$H'-C-C-H''$

Hence angle between

$H' - C - C - H"$ is

$({120^o} + {29^o}) = {149^o}$

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