题目内容

Which of the following molecules has the highest boiling point?( )

A. HF
B. H2O
C. NH3
D. CH4

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分子的极性不仅与分子中的键极性有关,还和分子的构型有关。

A. 对
B. 错

凡有氢键的物质其溶、沸点一定比同类物质的溶、沸点高。

A. 对
B. 错

Molecules that contain a polar bond are not necessarily polar compounds.

A. 对
B. 错

According to molecular-orbital theory, Ne2+ is expected to exit.

A. 对
B. 错

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