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【单选题】
镍氢充电电池有着广泛应用，镍及其化合物能发生下列反应 ①Ni+2HCl=NiCl 2 +H 2 ↑  ②NiO+2HCl=NiCl 2 +H 2 O；③NiO 2 +4HCl=NiCl 2 +Cl 2 ↑+2H 2 O 对上述反应的分析判断错误的是（      ）
A.
镍能与氯化铜溶液发生置换反应
B.
NiCl 2 能与NaOH溶液发生复分解反应
C.
反应②和③都是复分解反应
D.
Ni在①、③的反应中化合价都发生了变化
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