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Enthalpy of atomization of C(2)H(6)(g) a...

Enthalpy of atomization of `C_(2)H_(6)(g) and C_(3)H_(8)(g)` are 620 and `880kJmol^(-1)` respectively. The C-C and C-H bond energies are respectively

A

80 and 60 kJ `mol^(-1)`

B

80 and 90 kJ `mol^(-1)`

C

70 and 90 kJ `mol^(-1)`

D

200 and 80 kJ `mol^(-1)

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