A-LevelChemistryNitrogen and sulfur9701/12 · Oct/Nov 2017 · Q181 Mark
The reaction of nitrogen and oxygen to produce oxides of nitrogen happens at high temperatures in car engines or lightning strikes during thunderstorms. What is the main reason for these reactions requiring such high temperatures?
Athe lack of reactivity of nitrogen, due to the half-filled 2p subshell in the nitrogen atom
Bthe lack of reactivity of nitrogen, due to the strength of the bond in N2
Cthe lack of reactivity of oxygen, due to electron-electron repulsion in one of its 2p orbitals
Dthe lack of reactivity of oxygen, due to the strength of the bond in O2
✓ Correct answer
B: the lack of reactivity of nitrogen, due to the strength of the bond in N2
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