The energy barrier for carbon-carbon bond rotation in propane is mainly due to ________.
A) angle strain
B) bond strain
C) muscle strain
D) steric strain
E) torsion strain

Question

Quizplus · Accepted Answer

The energy barrier for carbon-carbon bond rotation in propane is mainly due to torsion strain. This is because when the carbon-carbon bond rotates, the hydrogen atoms on each carbon can repel each other, leading to an increase in potential energy. This type of strain is known as torsion strain.

The Energy Barrier for Carbon-Carbon Bond Rotation in Propane Is