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If C(s)+O(2)(g)rarrCO(2)(g),DeltaH=X and...

If `C(s)+O_(2)(g)rarrCO_(2)(g),DeltaH=X` and `CO(g)+1//2O_(2)(g)rarrCO_(2)(g),DeltaH=Y`, then the heat of formation of `CO` is

A

X - Y

B

Y - 2X

C

X + Y

D

2X - Y

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The correct Answer is:
A
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