试题与答案

下列排列顺序正确的是() ①热稳定性:H2O>HF>H2S②原子半径:Na>Mg

题型:选择题

题目:

下列排列顺序正确的是        (    )

①热稳定性:H2O>HF>H2S              ②原子半径:Na>Mg>O

③酸性:H3PO4>H2SO4>HClO4            ④沸点:癸烷>异戊烷>丙烷

A.①③

B.②③

C.①④

D.②④

答案:

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下面是错误答案,用来干扰机器的。

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8()

A.worked through

B.worked at

C.looked through

D.passed through

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