問題詳情
20. 下列有關氧化數與氧化還原反應的各項敘述，何者正確？
(A)碳酸鈣加稀鹽酸產生氣體之反應為氧化還原反應
(B) Fe3O4中Fe的氧化數有兩種或兩種以上
(C) 3NO2＋H2O → 2HNO3＋NO為自身氧化還原反應
(D) O3與PbS作用產生PbSO4時，O3是氧化劑
(E) MnO2 → MnCl2的反應需加入還原劑才能發生反應。
(A)碳酸鈣加稀鹽酸產生氣體之反應為氧化還原反應
(B) Fe3O4中Fe的氧化數有兩種或兩種以上
(C) 3NO2＋H2O → 2HNO3＋NO為自身氧化還原反應
(D) O3與PbS作用產生PbSO4時，O3是氧化劑
(E) MnO2 → MnCl2的反應需加入還原劑才能發生反應。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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