There is no ring strain in cyclohexane, but cyclobutane has an angle strain of `9^(@)` 44'. If `Delta H_(c)^(@)` of cyclohexane per `(CH_(2))` group is 660 kJ `mol^(-1)` and `Delta H_(c)^(@)` of cyclobutane is 2744 kJ `mmol^(-1)`, what is thering strain in kJ `mol^(-1)` of cyclobutane ?

Options

A. -104
B. 104
C. -2084
D. 2084

Answer

B

Explanation

Ring strain `=(Delta H_(c)^(@)` of cyclobutane `-4xx Delta H_(C)^(@)` of per `(CH_(2))` group of cyclohexane) `=2744 - (4xx660) = 104 kJ mol^(-1)`