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[" Given that "],[C+O(2)rarr CO(2)quad D...

[" Given that "],[C+O_(2)rarr CO_(2)quad Delta H^(@)=-xkJ],[2CO+O_(2)rarr2CO_(2)quad Delta H^(@)=-ykJ],[" The heat of formation of carbon monoxide will be "],[[" (A) "(y-2x)/(2)," (B) "y+2x],[" (C) "2x-y," (D) "(2xy)/(2x)]]

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