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The heat of combustion of carbon and mon...

The heat of combustion of carbon and monoxide are -394 and -285 KJ `mol^(-1)` respectively. The heat of formation of CO in KJ `mol^(-1)` is :-

A

`-218`

B

`-109`

C

`+109`

D

`+218`

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The correct Answer is:
C
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