本题目来源于试卷: Models of Bonding & Structure B.2 The Covalent Model，类别为 IB化学
[单选题]
Which of the following statements regarding the Lewis structure of $BF_3$ is correct?
I. The structure contains a net dipole moment
II.The structure would have bond angles of $120^{\circ}$ with one double bond
III.The structure is considered to be electron deficient
A. I, II, and III
B. I and II only
C. II only
D. III only
参考答案: D
本题详细解析:
There are three bonding pairs and no lone pairs around the central B atom giving it a trigonal planar shape. As this is symmetrical, there is no net dipole even though the individual bonds are polar. There are only six electrons around the central B atom making it electron deficient (it has not achieved its octet).
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