問題詳情
25. 附圖為以碳棒為電極的電解硫酸銅水溶液之實驗裝置，則下列敘述何者正確？
(A)反應一段時間後，水溶液顏色會變紅
(B)在甲碳棒附近會有氫氣產生
(C)若改以銅棒作為電極，則硫酸銅水溶液濃度會增加
(D)經一段時間後，乙碳棒質量會增加。
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
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