题目内容
下列关于氨气的说法正确的是 ( )
2021-08-19
A.氨气可以用碱石灰干燥也可用无水CaCl2干燥
B.氨水能导电,所以NH3是电解质
C.沸点:NH3<PH3<AsH3
D.用水吸收NH3用下图装置可防止倒吸:
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