试题与答案

下列物质中,属于氧化物的是[ ] A.O2 B.CO2 C.KClO3 D.CO

题型:选择题

题目:

下列物质中,属于氧化物的是[ ]

A.O2

B.CO2

C.KClO3

D.CO(NH2)2

答案:

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