问题 填空题

(共6分)以下物质①HF②H2③H2O④N2⑤C2H4⑥H2O2⑦NaCl(填序号)

(1)只含有极性键的是                                            

(2)既含有极性键又含有非极性键的是                              

(3)属于极性分子的是                                            

(4)既有σ键又有π键的是                                       

(5)含有s—sσ键的是                                            

(6)以上物质为固体时,属于离子晶体的是                            

答案

(共6分,每空1分,漏选、错选、多选均无分)

(1)13    (2)56   (3)136   (4)45    (5)2   (6)7

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