What is oxidation state of iron in Na2[Fe(CN)5(NO)SO4]
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CN has a charge of -1, NO is 0, and Na is +1. This makes Fe +3, since it has to combine with the overall +2 from the sodium ions to balance the overall -5 from the cyanide groups.
N in NO is +2 and O is -2. N in CN is -3 and C is +2.
N in NO is +2 and O is -2. N in CN is -3 and C is +2.
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