TS EAMCET 5 May 2018 Shift 2 Solved Paper

For NO2,N2O4,N2O5,N2O3
The oxidation number of NO2 is +4
The oxidation number of N2O4 is +4,
The oxidation number of N2O5 is +5,
The oxidation number of N2O3 is +3 ,
So, N2O5 with higher oxidation state is more acidic.