问题 选择题

下图中“—”表示相连的两种物质在一定条件下可以发生反应, “→”表示甲在一定条件下可与某种物质反应生成丙。下表四组选项中,符合图中要求的是      

[ ]

甲         乙         丙        丁              
A.NaOH     CuSO4  H2OHCl
B.O2 CO   Fe3O4   C
C.Fe  CuCl2 Mg    HCl
D.Cu HCl CuOMg
答案

答案:B

探究题

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单项选择题 A1/A2型题