题目内容

Predict their molecular shape and bond angle of BF3, NF3A. both Trigonal planarB. both Trigonal pyramidalC. BF3 is Trigonal planar, NF3 is Trigonal pyramidalD. BF3 is Trigonal pyramidal, NF3 is Trigonal planar

A
B
C
D

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What type of hybridization for the atom C in CCl4.A. sp B. sp2C. sp3 D. sp3 with lone pair

A
B
C
D

What type of bond between C and Cl atoms in CH3Cl ?A.σ(sp3-s)B.σ(sp3-p)C.σ(sp-s )D. π

A
B
C
D

共价键一般不存在于

A. 金属原子之间
B. 非金属原子之间
C. 电负性不相同的元素原子之间
D. 电负性相同的元素原子之间

下列各组分子间同时存在取向力、诱导力、色散力和氢键的是A.苯和CCl4B.H2O和CH3OHC.CH3F和C2H6D.N2和N2

A
B
C
D

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