The solution is option (i).
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because of _________. (i) the reaction is endothermic and requires very high temperature. (ii) the reaction can be initiated only in the presence of a catalyst. (iii) oxides of nitrogen are unstable. (iv) N2and O2 are unreactive.
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because of _________. (i) the reaction is endothermic and requires very high temperature. (ii) the reaction can be initiated only in the presence of a catalyst. (iii) oxides of nitrogen are unstable. (iv) N2and O2 are unreactive.
