(I) The staggered conformation of a molecule is that conformation where the dihedral angle between the bonds at each atom of carbon-carbon bond is 60°, 180°,300°.
(II) In the eclipsed conformation the atoms bonded to carbons at each end of carbon-carbon bond are directly opposite to one another. The dihedral angle between them is 0°, 120°, 240°.
(III) Skew conformation : All conformations other than staggered or eclipsed are skew conformations.
