A-LevelChemistryNitrogen and sulfur9701/12 · Feb/Mar 2019 · Q191 Mark
Ammonia, NH₃, and hydrazine, NH₂NH₂, are two compounds of nitrogen, N₂. Which statement is correct?
AThe N-N bond in NH₂NH₂ is polar.
BNH₃ and NH₂NH₂ have lone pairs of electrons but N₂ does not.
CThe oxidation number of each nitrogen in NH₂NH₂ is +2.
DThe reaction of nitrogen with hydrogen has a high activation energy.
✓ Correct answer
D: The reaction of nitrogen with hydrogen has a high activation energy.
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