Now evaluating it, we get ... Find the oxidation number of S in H2S2O8. The alkaline earth metals (group II) are always assigned an oxidation number of +2. How The oxidation number of Fe in Fe 3 O 4 is fractional. Comments (1) Report 98 is wrong answere Log in to add a comment pratiyush76 Ambitious; H2s2o8 let O,N of S=x 2×1+2×x+(-2)×8=0 2x=14 x=14/2 x=7. It contains sulfur in its +6 oxidation state, but it also contains a peroxide group, which is why it appears to be in a higher oxidation state than sulfates. Oxidation number of element in a compound can be positive or negative or may be zero. Rate! Can the oxidation number of an element be zero? Structure of thiosulphuric acid. It is also called Marshall's acid. In my book the oxidation number of oxygen in this compound is -1? H 2 S 2 O 8 + 2H 2 O â H 2 O 2 + 2H 2 SO 4. In sodium compounds, sodium only forms +1 oxidation number. Thanks 3. H2O8S2. Caswell No. Calculate the oxidation number of S in Na 2 S 4 O 6. peroxydisulfuric acid H2S2O8. Sulfooxy hydrogen sulphate. Peroxydisulfuric acid (((HO)S(O)2)2O2) Peroxydisulfuric acid ([(HO)S(O)2]2O2) 2RQ1860626. Oxygen almost always has an oxidation number of -2, except in peroxides (H 2 O 2) where it is -1 and in compounds with fluorine (OF 2) where it is +2. asked Aug 18, 2016 in Chemistry by Rahul Roy (7.5k points) BDBM50147631. The chemical equation is given below. CTK4B9190. Chemical Properties of Peroxydisulfuric Acid â H 2 S 2 O 8. Why? (A) H2SO5, H2S2O8, K2Cr2O7, SF6 (B) K2Cr2O7, K2CrO4, CrO5, CrO2Cl2 (C) NH3, Calculate the oxidation number of sulphur in H2s2o8 2 See answers Answers arjunrathore99 Helping Hand; Your answer is =98 this is your answer. Let us assume that K is +1 and O is -2 and then we calculate the oxidation state of sulfur. Peroxodischwefelsaure. Find the oxidation number of Boron in BH 3 andBF 3. CHEMBL1208163. H2S2O8. Peroxydisulfuric Acid dissolves in water forms hydrogen peroxide and sulphuric acid. In structural terms it can be written HO3SOOSO3H. EPA Pesticide Chemical Code 063601. We know that, the sum of the oxidation numbers must be zero for a compound. One double bond between sulphur and oxygen. Calculate the Oxidation number of Sulphur in S 2 O 8 2-ion. JIPMER 2015: Which combination is odd with respect to oxidation number? Peroxydisulfuric Acid reacts with silver nitrate in aqueous medium forms silver oxide, sulphuric acid and nitric acid. 645. sulfooxy hydrogen sulfate. The sum of oxidation numbers should equal the ionic charge (-2) +2 + 2x -7*2 = -2. The alkali metals (group I) always have an oxidation number of +1. The oxidation numbers of the sulphur atoms in peroxomonosulphuric acid (H2SO5) and pero- xodisulphuric acid (H2S2O8) are respectively (A) + 8 and + 7 H2S2O3 One double bond between sulphur and sulphur. add the oxidation numbers for each element, using H = +1 and O = -2, let x be the oxidation no for P in this compound. DTXSID00894926. 2x = 14 - 4 = 10. x = 5 Peroxydisulfuric acid is a sulfur oxoacid with the chemical formula H2S2O8. 0.0 0 votes 0 votes Rate! But some types of atoms such as chlorine form various oxidation numbers like -1, 0, +1, +3, +5, +7 oxidation numbers in compounds.