ÔN TẬP SẮT VÀ HỢP CHẤT 07.4 - COVID19
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Ông Đồ Làng
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của oxit sắt (III) là
Fe2O3
FeO
Fe3O4
FeO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của sắt (II) hidroxit là
Fe(OH)3
Fe(OH)2
FeO
Fe2O3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của sắt (III) sunfat là
FeSO4
Fe2(SO4)3
FeS
FeS2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quặng xiđerit chứa thành phần chính là
Fe2O3
Fe3O4
FeCO3
FeS2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất nào dưới đây sắt ở trạng thái số oxi hóa +2?
FeCl3
Fe2(SO4)3
FeSO4
Fe2O3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cho 11,2 gam Fe tác dụng với clo dư (t0). Khối lượng muối thu được là
16,25
12,7
25,4
32,5
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cho m gam Fe tác dụng với dung dịch H2SO4 đặc, nóng dư thấy tạo ra 3,36 lit SO2. Giá trị của m là
5,6
11,2
2,8
22,4
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