下列说法中，正确的是_刷题宝

题干

下列说法中，正确的是

A：铅蓄电池放电时铅电极发生还原反应

B：钢铁吸氧腐蚀的正极反应：O₂ + 2e^- + 2H₂O = 4OH^-

C：给铁钉镀铜可采用Cu²⁺的溶液作电镀液

D：生铁浸泡在食盐水中发生析氢腐蚀

上一题下一题 0.0难度选择题更新时间:2018-03-31 10:04:56

答案(点此获取答案解析）

C

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