Grade 12Engineering Entrance ExamsWhat happens when SO2 is passe dtgrough acidified soln of KMnO4 Malavika 8 Years agoGrade 12
RAMESH KUMARApproved Tutor Answer8 Years agoThe Reaction will be a Redox Reaction which can be described in these half reactions:Oxidation Reaction (i): SO2(g)+2H2O(l)→SO2−4+4H++2e−Reduction rxn (ii):MnO−4+8H++5e−→Mn2++4H2OOverall rxn: = 5×(i)+2×(ii) =2MnO−4+5SO2(g)+2H2O(l)→2Mn2++5SO2−4+4H+