ÔN TẬP CẶP OXI HÓA - KHỬ , PIN ĐIỆN HÓA
Quiz
•
Chemistry
•
12th Grade
•
Medium
dung nguyễn
Used 5+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al/Al3+
Fe2+/Fe
Al3+/Al
Fe3+/Fe
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Giá trị thế điện cực chuẩn của cặp oxi hoá - khử nào được quy ước bằng 0?
A. Na+/Na. B. 2H+/H2.
C. Al3+/Al. D. Cl2/2Cl-
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cặp oxi hoá - khử nào sau đây có giá trị thế điện cực chuẩn lớn hơn 0?
A. K+/K. B. Li+/Li.
C. Ba2+/Ba. D. Cu2+/Cu.
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cho dãy sắp xếp các kim loại theo chiều giảm dần tính khử: Na, Mg, Al, Fe. Trong số các cặp oxi hoá - khử sau, cặp nào có giá trị thế điện cực chuẩn nhỏ nhất?
A. Mg2+/Mg. B. Fe2+/Fe.
C. Na+/Na. D. Al3+/Al.
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cho thứ tự sắp xếp các cặp oxi hoá – khử trong dãy điện hoá: Mg2+/Mg, H2O/H2, OH-, 2H+/H2, Ag+/Ag. Cặp oxi hoá/khử có giá trị thế điện cực chuẩn lớn nhất trong dãy là:
A. 2H+/H2. B. Ag+/Ag.
C. H2O/H2,OH-. D. Mg2+/Mg.
A
B
C
D
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