What are the oxidation numbers of carbon in HCN, CO, HNC, respectively

1.	What are the oxidation numbers of carbon in HCN, CO, HNC, respectively?
A.	3, 3, 3
B.	3, 2, -3
C.	2, 2, 2
D.	3, 2, 2
Answer» D. 3, 2, 2

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What are the oxidation numbers of carbon in HCN, CO, HNC, respectively?

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