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 is the reducing agl*a 3yc-*wbo,f1 c twkenxn7d2-9k em 1ym lper3t in this reaction?
$Zn_{(s)} + 2NO_{3(aq)}^-$ + 4H^+_{(aq)} \rightarrow Zn^{2+}_{(aq)} + 2NO_{2(g)} + 2H_2O_{(I)}$
A. $Zn_{(s)}$
B. $NO_{3(aq)}^-$
C. $Zn^{2+}_{(aq)}$
D. $H^+_{(aq)}$
参考答案: A
本题详细解析:
Reducing agent is a substance that is oxidized.
Oxidati1ml yie d7p+xdcw3*9kqynj 1sdw .0j 5on state of Zn increases from 0 to +2, whereas the oxidation state of N decreases j1ep1x.9l dwm* ckyn75y0 3qdj+isdw from +5 to +4.
The oxidation state of H remains +1.
The oxidation state of O remains -2.
| 
