One of the steps in the fixation of nitrogen by lightening is given below.
2NO2(g) + H2O(l) → HNO2(aq) + HNO3(aq)
In this reaction, is the element nitrogen oxidized or reduced?
◦ Nitrogen is oxidized in this reaction.
◦ Nitrogen is reduced in this reaction.
◦ Nitrogen is oxidized and reduced in this reaction.
◦ Nitrogen is neither oxidized nor reduced in this reaction.