题目:
HgCl2的稀溶液可用做手术刀的消毒剂,已知HgCl2的熔点为277℃,熔融态的HgCl2不能导电,HgCl2的稀溶液有弱的导电能力,则下列有关HgCl2的叙述中正确的是 [ ]
①HgCl2属于共价化合物②HgCl2属于离子化合物
③HgCl2属于非电解质④HgCl2属于弱电解质
A.①③
B.①④
C.②③
D.②④
答案:
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