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Which of the following set has DeltafH°=...

Which of the following set has `Delta_fH°=0`?

A

P(white),`O_3(g)`,`Cl_2(g)`

B

`I_2(s), P_4(white), Br_2(l)`

C

`I_2(s),CaCO_3(s),H_2O(l)`

D

`O_2(g), Br_2(l),P(black)`

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