试题与答案

通常状况下除去混合物中所含杂质的方法，正确的是[ ]物质所含杂质除去杂质的方法A

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题型：选择题

题目：

通常状况下除去混合物中所含杂质的方法，正确的是[ ]

物质所含杂质除去杂质的方法
A.CuSO4粉末Fe粉加水充分搅拌；过滤；将滤液蒸发结晶
B.C粉CuO粉末加入过量稀盐酸，充分反应后，过滤，干燥
C.CO2气体CO通入氧气，点燃
D.MnO2KClO3充分加热后冷却

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B

考点：物质的除杂
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