
課題七:氧化還原反應、化學電池和電解
Quiz
•
Chemistry
•
7th - 9th Grade
•
Practice Problem
•
Hard
Chemistry Aristo
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
參看以下反應:
(NH4)2Cr2O7(s) → N2(g) + 4H2O(l) + Cr2O3(s)
哪種元素進行還原作用?
A. Cr
B. H
C. N
D. O
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪個電解中,電解質在過程後維持不變?
A. 利用鉑電極電解稀硫酸
B. 利用鉑電極電解稀氫氧化鈉溶液
C. 利用銅電極電解硫酸銅(II) 溶液
D. 利用石墨電極電解硫酸銅(II) 溶液
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪種化合物中錳的氧化數最高?
A. MnCl2
B. MnO2
C. MnSO4
D. Mn2O3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪個有關把銀鍍在銅製品上的組合正確?
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
圖中顯示一個連接至伏特計的簡單化學電池。
下列哪個電極的組合會使電子由電極X經外電路流向電極Y?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
鹼性錳電池一般用於下列哪種物件?
A. 數碼相機
B. 緊急照明
C. 石英錶
D. 電鬚刨
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把氣體M通入溶液N中,如圖所示。
下列哪個M和N的組合會產生可觀察的變化?
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