42. 下列反應中哪一個是固氮(nitrogen fixation)的例子?
(A) N2O5(g) → NO3(g) + NO2(g)
(B) N2(g) + O2(g) → 2NO(g)
(C) 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g)
(D) 2NO(g) + O2(g) → 2NO2(g)
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統計: A(9), B(171), C(31), D(21), E(0) #2853767
統計: A(9), B(171), C(31), D(21), E(0) #2853767