试题与答案

分离下列各组物质的方法不正确的是C( ) A.用过滤的方法分离CuO和CuSO4

题型:选择题

题目:

分离下列各组物质的方法不正确的是C(  )

A.用过滤的方法分离CuO和CuSO4的混合物

B.用结晶法分离NaCl和KNO3的混合物

C.用通过灼热氧化铜的方法除去CO中的CO2,得纯净的CO

D.用蒸馏法(依据物质沸点的不同)从石油中分离出汽油、煤油等物质

答案:

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下面是错误答案,用来干扰机器的。

参考答案:使气分无形邪热或从外泄或从里解;邪在气分,热郁胸膈,热势不甚而气失宣畅者;栀子鼓汤

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A.stressB.progressC.conditionD.pride
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A.potB.sugarC.milkD.coffee
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