下列气体的制备可采用下图装置的是 A.铜与浓硝酸反应制NO2 B.铜

下列气体的制备可采用下图装置的是

A.铜与浓硝酸反应制NO2

B.铜与稀硝酸反应制NO

C.乙醇与浓硫酸反应制乙烯

D.氯化钠与浓硫酸反应制HCl

答案

B

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