The oxidation number of sulphur in H2S2O7 and iron inK4Fe(CN)6 is respectively
+ 6 and + 2
+ 2 and + 2
+ 8 and + 2
+ 6 and + 4
H2S2O7
2×(+1)+2× x +7x(-2)=0
+2+2x-14=0
2x =14 -2=12
x =122=+6 for s
K4Fe(CN)6
4×x +6×(-1) =-4
x =6-4 =+2 for Fe
The oxidation number of sulphur in sulphur dioxideSO2 and sulphuric acidH2SO4 is respectively
The oxidation number of sulphur in S8, S2F2, H2S respectively, are
The oxidation number of sulphur in S8,S2F2 and H2S respectively are