1.

The angle strain in cyclobutanne is

Answer»

`19^(@)22`
`9^(@)44`
`24^(@)44`
`29^(@)16`

Solution :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`.


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