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Calculate DeltaH("combustion"^(@) of C("...

Calculate `DeltaH_("combustion"^(@)` of `C_("graphite")` if `DeltaH_(f)^(@)` of ace tone `=-250 kJ`, `Delta_("combustion")^(@)`of acetone `=-1760 kJ`,
`DeltaH_("combustion")^(@) " of "H_(2)(g)=-280 kJ`

A

`-390 kJ`

B

`-120 kJ`

C

`-500 kJ`

D

`-200 kJ`

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The correct Answer is:
A
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