1.下列化合物或離子中，氧的氧化數不為－2 者為何？(A)H2O (B)N2O (C)Ca(OH)2 (D)Na2O2 (E)CuSO4

問題詳情

1.下列化合物或離子中，氧的氧化數不為－2 者為何？
(A)H2O
(B)N2O
(C)Ca(OH)2
(D)Na2O2
(E)CuSO4

參考答案

答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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