Question

Which of the following dihedral angle is not possible in skew conformation?

• A. ${60}^{\circ }$
• B. ${150}^{\circ }$
• C. ${30}^{\circ }$
• D. ${90}^{\circ }$

Answer 1

The correct option is A ${60}^{\circ }$

Any other intermediate conformation (dihedral angle other than $0^{\circ }/{60}^{\circ }/{120}^{\circ }/{180}^{\circ }/{240}^{\circ }/{300}^{\circ }$) is called skew conformation. So the correct answer will be option (a).