JIPMER2010ChemistryGeneral Organic Chemistry
Dihedral angle between two methyl groups of n -butane in the gauche and anti forms are
Options
- A60^ , 0^
- B0^ , 60^
- C60^ , 180^
- D180^ , 60^
Correct answer
C. 60^ , 180^
Step-by-step solution
(The angle between C - C and C - H bonds on adjacent carbon atoms in any conformation is called dihedral angle.) Hence, the dihedral angle in case of gauche is 60^ and in anti form is 180^ .