問題詳情
5•下列分子的中心原子，何者沒有未鍵結電子對(孤對電子對）?
(A)C02
(B)H20
(C)H2S
(D)NF3
(E)NH3 o
(A)C02
(B)H20
(C)H2S
(D)NF3
(E)NH3 o
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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