Which of the Following Reactions Associated with Nitrogen Fixation by Lightening

question 1

Multiple Choice

Which of the following reactions associated with nitrogen fixation by lightening is a disproportionation reaction
I. N₂(g) + O₂(g) $\rarr$ 2NO(g)
II. 2NO(g) + O₂(g) $\rarr$ 2NO₂(g)
III. 2NO₂(g) + H₂O(l) $\rarr$ HNO₂(aq) + HNO₃(aq)

• A) I, II, and III
• B) II and III
• C) I and II
• D) I and III
• E) III only

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