In the following skew conformation of ethane, `H' -C-C-H'` dihedral angle is :

In the following skew conformatioin of ethane, H'-C-C-H'' dihedral angle is :

In the following skew conformatioin of ethane, H'-C-C-H'' dihedral angle is :

In the following skew conformatioin of ethane, H'-C-C-H'' dihedral angle is :

In the eclipsed conformation of ethane , the dihedral angle between the gydrogen atoms of adjacent methyl groups is

In the eclipsed conformation of ethane, the dihedral ungle between the hydrogen atoms of adjacent methyl groups is

(a) Draw sawhorse projection formulae for the two eclipsed conformations of butane. (b) What is the dihedral angle between adjaccent methyl groups? (c) Which conformer has greater torsional strain?

(a) Draw sawhorse projection formulae for the two eclipsed conformations of butane. (b) What is the dihedral angle between adjaccent methyl groups? (c) Which conformer has greater torsional strain?

The dihedral angle of the least stable conformation of ethane is

Dihedral angle in staggerred form of ethane is