题目内容

下列分子中,中心原子采取等性杂化的是( )。

A. NCl3
B. SF4
CCl4
D. H2O

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下列离子中,中心原子采取不等性杂化的是( )。

A. H3O+
B. NH4+
C. PCl6-
D. BI4-

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