本题目来源于试卷: Mechanisms of Chemical Change F.2 Electron Transfer Reactions，类别为 IB化学
[单选题]
What happens to nitrogen when nitrate ch*rlw8o/k +zv xang urqiy-qmulz/bsjipp 09t 13k/xd8q:b1b 0 o*es to nitrite ?
A. It undergoes oxidation and its oxidation number changes from +4 to +5
B. It undergoes oxidation and its oxidation number changes from +2 to +4
C. It undergoes reduction and its oxidation number changes from +5 to +3
D. It undergoes reduction and its oxidation number changes from +4 to +2 Markscheme Difficulty: Medium Question 30 Calculator Allowed
参考答案: C
本题详细解析:
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