
化學電池
Authored by Siu Law
Chemistry
10th Grade
Used 25+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下的「檸檬電池」所用的電解質是什麼?
水
檸檬汁
鋅
銅
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
上圖顯示金屬X與鐵連接而組成的化學電池。
以下哪種可產生最大的電流?
鋅
銅
鎂
銀
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下哪項有關把一片鋅放入硫酸銅(II)溶液的陳述不正確?
硫酸銅(II)溶液的溫度上升。
溶液的顏色變得較深。
銅(II)離子接收電子形成銅。
鋅失去電子,形成鋅離子。
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
參照以上簡單化學電池的實驗裝置。
以下哪項改變可減低電池的電壓?
(1) 以鋅電極取代鎂電極
(2) 以鐵電極取代銅電極
(3) 葡萄糖水取代氯化鉀溶液
只有(1)和(2)
只有(1)和(3)
只有(2)和(3)
(1)、(2)和(3)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
參照以上實驗裝置。
以下哪項或哪些陳述正確?
(1) 電子由銅經過外電路流向鋅。
(2) 濾紙上的銅(II)離子在銅的表面放電。
(3) 鋅是電池的負電極。
只有(1)
只有(2)
只有(1)和(3)
只有(2)和(3)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下哪項陳述正確?
鋅是電池的負電極。
電子由鋅經過外電路流向鎂。
鋅離子經鹽橋移向另一個半電池。
硫酸鎂溶液中的鎂離子濃度增加。
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下哪項或哪些有關簡單化學電池中的陰極的陳述正確?
(1) 陰極是電池的負電極。
(2) 陰極是進行還原作用的電極。
(3) 電子由陰極經過外電路流向陽極。
只有(1)
只有(2)
只有(1)和(3)
只有(2)和(3)
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