Balanced ionic equation for the reaction of Potassium Dichromate (VI) K2Cr2O7 with Sodium Sulphite Na2SO3 in acid solution to give Chromium (III) ion and sulphate ion is
Balance the following redox reactions by ion-electron method: MnO−4(aq)+I−(aq)→MnO2(s)+I2(s) (in basic medium)
MnO−4(aq)+SO2(g)→Mn2+(aq)+(aq)HSO−4(aq) (in acidic solution)
H2O2(aq)+Fe2+(aq)→Fe3+(aq)+H2O(l) (in acidic solution)
Cr2O2−7+SO2(g)→Cr3+(aq)+SO2−4 (aq) (in acidic solution)