The angle strain in cyclobutanne is

Options

A. `19^(@)22`
B. `9^(@)44`
C. `24^(@)44`
D. `29^(@)16`

Answer

B

Explanation

According to Baeyer 's strain theory , the amount of the strain is directly proportional to the angle through which a valency bond has deviated from its normal position . i.e., Amount of deviation (d) `=1//2(109^(@)28'-` valency angle)
In cyclobutance (d) `=1//2(109^(@)28'-90^(@))=9^(@)44`.