Heat of combustion of CH(4),C(2)H(4),C(2...

Heat of combustion of `CH_(4),C_(2)H_(4),C_(2)H_(6)` are `-890,-1411` and `-1560 kJ //mol` respectively. Which has the lowest calorific fuel value ?

A

`CH_(4)`

B

`C_(2)H_(4)`

C

`C_(2)H_(6)`

D

All of these

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The correct Answer is:

B

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