JEE Main 202226 Jul, Morning shiftChemistryEasyRedox Reactions and Electrochemistry138× since 2002Which of the given reactions is not an example of disproportionation reaction?AOption A. 2H2O2→2H2O+O22 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}2H2O2→2H2O+O2BOption B. 2NO2+H2O→HNO3+HNO22 \mathrm{NO}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HNO}_{3}+\mathrm{HNO}_{2}2NO2+H2O→HNO3+HNO2COption C. MnO4−+4H++3e−→MnO2+2H2O\mathrm{MnO}_{4}^{-}+4 \mathrm{H}^{+}+3 \mathrm{e}^{-} \rightarrow \mathrm{MnO}_{2}+2 \mathrm{H}_{2} \mathrm{O}MnO4−+4H++3e−→MnO2+2H2ODOption D. 3MnO42−+4H+→2MnO4−+MnO2+2H2O3 \mathrm{MnO}_{4}^{2-}+4 \mathrm{H}^{+} \rightarrow 2 \mathrm{MnO}_{4}^{-}+\mathrm{MnO}_{2}+2 \mathrm{H}_{2} \mathrm{O}3MnO42−+4H+→2MnO4−+MnO2+2H2OCheckSkip · show solution
