
cuối kỳ 2 lớp 12
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
Hà Mai
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76 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các kim loại sau đây: Li, Al, Ba, Na, K, Mg, Ca. Số kim loại kiềm là ?
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhôm bền trong môi trường không khí và nước là do ?
Nhôm là kim loại kém hoạt động.
Có màng hidroxit Al(OH)3 bền vững bảo vệ.
Có màng oxit Al2O3 bền vững bảo vệ.
Nhôm có tính thụ động với không khí và nước.
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Sắt(II) oxit có công thức hóa học là
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắt có số oxi hóa +3 trong hợp chất nào sau đây?
Fe(NO3)2
FeSO3
FeSO4
Fe2O3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho 5,4 g Al tác dụng với dụng dich HCl dư thu được V lít khí H2 ( đktc). Giá trị của V là :
2,24
3,36
6,72
4,48
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khối lượng muối tạo thành khi cho Fe tác dụng vừa đủ với 6,72 lít Cl2 (đktc) là:
32,5 g
19,05 g
16,25 g
38,1 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình nào sau đây của Fe2+?
[Ar]3d5
[Ar]3d6
[Ar]3d4
[Ar]3d3
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