试题与答案

某工厂排放的酸性废水中含有较多的CuSO4，这种废水对农作物和人畜有害。为了降低

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题型：选择题

题目：

某工厂排放的酸性废水中含有较多的CuSO4，这种废水对农作物和人畜有害。为了降低废水的酸性并且回收铜，通常需在此废水中加入适量的[ ]

A．熟石灰

B．铁和生石灰

C．铁和石灰石

D．氢氧化钠

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A, B, C, D, E

考点：中和反应及在实际中的应用金属的化学性质
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