
考考你:第32章 電解
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Chemistry
9th - 12th Grade
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮使用石墨電極來電解濃氯化鉀溶液。下列哪些有關這電解的陳述正確?
(1) 在陽極產生的生成物具漂白性質。
(2) 在陰極產生的生成物可用於製造人造牛油。
(3) 電解溶液的pH逐漸減少。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若使用碳電極來電解下列溶液,哪些溶液在電解時會在陰極生成氫?
(1) 0.5 M硝酸銀溶液
(2) 0.01 M氫氧化鈣溶液
(3) 3 M乙酸
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
參照圖中的電解池。這電解池運作一段時間後,下列哪些有關電解池的陳述正確?
(1) CuSO₄(aq)的濃度維持不變。
(2) 銅電極X的質量減少。
(3) 在銅電極Y上有無色氣泡生成。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關把鎳鍍上一金屬物件的陳述正確?
(1) 鎳可用作陽極。
(2) NiSO₄(aq)可用作電解溶液。
(3) 在陰極上所起變化的半方程式是Ni²⁺(aq) + 2e⁻ → Ni(s)。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪項或哪些有關使用碳電極來電解熔融碘化鈉的陳述正確?
(1) 碳電極X是這電解池的正電極。
(2) 在碳電極X上所起變化的半方程式是Na⁺(l) + e⁻ → Na(l)。
(3) 在碳電極Y上有棕色煙霧產生。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
圖中顯示一電解實驗所用的裝置。這裝置使用四根碳棒作為電極。在哪根碳棒上不會有氣體釋出?
A. 棒子W
B. 棒子X
C. 棒子Y
D. 棒子Z
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
參照圖中的裝置。已知電極T和電極U都是用石墨製成的。這裝置運作一段時間後,下列哪些有關裝置的陳述正確?
A. 還原反應在Zn(s)電極上發生。
C. 有黃綠色氣體在電極T上釋出。
D. 有無色氣泡在電極U上釋出。
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