Sodium nitroprusside is $\mathrm{Na}{}_2[\mathrm{Fe}(\mathrm{CN}){}_5\mathrm{NO}]$. Taking NO as the nitrosonium ligand $\mathrm{NO}{}^{+}$, find the oxidation number of iron. Give an integer.

More questions on Oxidation number rules and unusual cases

• Wustite has the non-stoichiometric composition Fe_0.93O, with iron present only as Fe^2+ and Fe^3+. Find the percentage of iron atoms presen... JEE Advanced level
• Find the sum of the INDIVIDUAL oxidation numbers of all sulfur atoms in one formula unit of H2S2O8 (one O-O bond) plus all sulfur atoms in t... JEE Advanced level
• Magnetite, Fe3O4 (treat as one Fe^2+ and two Fe^3+), is oxidised completely to Fe2O3. How many moles of electrons are lost by 69.6 g of Fe3O... JEE Advanced level
• Peroxodisulfuric acid H2S2O8 has one O-O bond. How many moles of oxygen atoms with oxidation number -1 are present in 19.4 g of it? (H 1, S ... JEE Advanced level
• Ascorbic acid has the molecular formula C6H8O6. Find the average oxidation number of carbon (H is +1, O is -2). Give two decimal places (inc... JEE Advanced level
• Sodium dithionite, Na2S2O4, is oxidised completely to sulfate, SO4^2-. What mass of dithionite loses 0.060 mol of electrons? (Na 23, S 32, O... JEE Advanced level