
第21節十分鐘小測
Authored by QTSSCI QTSSCI
Science
1st Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 負;Cd(s) → Cd2+(aq) + 2e–
B 負;Ni(s) → Ni2+(aq) + 2e–
C 正;Cd(s) → Cd2+(aq) + 2e–
D 正;Ni(s) → Ni2+(aq) + 2e–
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 錳是陰極。
B 在鉛電極上發生氧化作用。
C 電子由鉛電極經外電路流向錳電極。
D 鹽橋中的陰離子流向硝酸錳(II)溶液。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 只有 (1)
B 只有 (2)
C 只有 (1) 和 (3)
D 只有 (2) 和 (3)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 只有 (1) 和 (2)
B 只有 (1) 和 (3)
C 只有 (2) 和 (3)
D (1)、(2) 和 (3)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 只有 (1)
B 只有 (2)
C 只有 (1) 和 (3)
D 只有 (2) 和 (3)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6 某些心臟起博器使用特製的鋰電池作為電源。在電極上發生的變化可用以下的離子半方程式表示:
電極X: 2SOCl2 + 4Li+ + 4e– → 4LiCl + S + SO2
電極Y: Li → Li+ + e–
下列有關該化學電池的陳述,何者正確?
(1) 在電極Y上發生氧化作用。
(2) 電極X是陽極。
(3) 電子從電極Y經外電路流向電極X。
A 只有 (1)
B 只有 (2)
C 只有 (1) 和 (3)
D 只有 (2) 和 (3)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 0.57 mol dm–3
B 0.53 mol dm–3
C 0.48 mol dm–3
D 0.42 mol dm–3
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