KCET2008ChemistryGeneral Organic Chemistry
The angle strain in cyclobutane is
Options
- A24^ 44^
- B29^ 16^
- C19^ 22^
- D9^ 44^
Correct answer
D. 9^ 44^
Step-by-step solution
When carbon is bonded to four other atoms, the angle between any pair of bonds =109^ , 28^ (tetrahedral angle) but the ring of cyclobutane is square with four angles of 90^ . So, deviation of the bond angle (angle strain) in cyclobutane =109^ 28^ -90^ / 2 =19^ 28^ / 2=9^ 44^