問題詳情
37.右圖為「離子存在的證據」的實驗裝置。通電一段時間後，有關此實驗的敘述何者正確？ 
(A)A電極稱為正極
(B)藍色的Cu2＋離子會向A極移動
(C)無色的二鉻酸根離子會向B極移動
(D)B電極的質量增加
(E)可用蒸餾水代替在U形管兩側加入的硫酸水溶液。
(A)A電極稱為正極
(B)藍色的Cu2＋離子會向A極移動
(C)無色的二鉻酸根離子會向B極移動
(D)B電極的質量增加
(E)可用蒸餾水代替在U形管兩側加入的硫酸水溶液。
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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