Dihedral Angle

Q. Dihedral angle and torsional angle are the same.

1. True
2. False

Q. What is the dihedral angle in the anti-conformation of n-butane?

1. \N
2. 60
3. 120
4. 180

Q. Dihedral angle and torsional angle are the same.

1. True
2. False

Q. What is the dihedral angle in this molecule?

1. ${120}^o$
2. ${60}^o$
3. ${180}^o$
4. No dihedral angle exists.

Q. With respect to the conformers of ethane, which of the following statement is true?

1. The bond angle remains the same but the bond length changes
2. The bond angle changes but the bond length remains the same
3. Both the bond angle and the bond length changes
4. Both the bond angle and the bond length remains the same.