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下列反应中,SO2被还原的是
下列反应中,SO2被还原的是
下列反应中,
SO
2
被还原的是
A
.
SO
2
+
2NaOH =Na
2
SO
3
B
.
SO
2
+
Cl
2
+
2H
2
O=H
2
SO
4
+
2HCl
C
.
SO
2
+
2H
2
S=3S↓
+
2H
2
O
D
.
SO
2
+
NO
2
=SO
3
+
NO
答案
C
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