
化學ch23電解quiz
Authored by Hang Ip
Science, Chemistry
8th Grade
Used 5+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在電解過程中,下列哪種離子最不容易放電?
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用銅電極進行稀硝酸銅(II)溶液的電解時,下列哪個組合正確?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
硫酸在這裝置中的功用是甚麼
作為催化劑
增加能自由流動的離子的量
保護電極
減少溶液中的雜質
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項有關該裝置的陳述不正確
經過一段時間後,陽極附近的溶液呈紅色。
經過一段時間後,陰極附近的溶液呈黃色
硝酸鎂溶液的濃度逐漸增加
在陽極上收集到的氣體對在陰極上收集到的氣體的體積比是1:1。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在電極X和Y上會分別生成甚麼
X:氯,Y:鈣
X:氯,Y:氫
X:氧,Y:鈣
X:氧,Y:氫
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
考慮用碳陽極和銅陰極進行硫酸銅(II)溶液的電解。下列哪項有關這電解的陳述正確?
O2(g) 在陰極釋出
H2(g) 在陽極釋出。
溶液的顏色逐漸消褪
溶液中Cu2+(aq) 離子的濃度保持不變
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
這是在探究濃碘化鉀溶液的電解,下列哪些有關該實驗的陳述正確(可多選)
電極A附近的溶液逐漸呈棕色
氫氣會在電極B釋出
培養皿內的溶液會逐漸變成KOH(aq)。
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