In the reaction of oxalate with permaganate in acidic medium, the number of electrons involved in producing one molecule of CO2 is

10 molecules of CO2 ....... 10e-1 molecules of CO2 ....... Xe-X = 1In a simplywayC2O4-2 → 2CO2 + 2e2molecule CO2 - 2 electrons1 molecule CO2 - 'X' electronsX = 1