
Hóa 12
Authored by khanh bao
Biology
9th - 12th Grade
Used 5+ times

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43 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trộn bột kim loại X với bột oxi sắt để thực hiện p.ứng nhiệt nhôm dùng để hàn đường ray tàu hỏa. X là
Ag
Al
Cu
Fe
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để chứng tỏ sắt có tính khứ yếu hơn nhôm, người ta lần lượt cho sắt và nhôm tác dụng vs
dd ZnSO4
H2O
dd CuCl2
HNO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân hủy Fe(OH)3 ở nhiệt độ cao đến khối lương ko đổi, thu dc chất rắn
Fe(OH)2
Fe2O3
Fe3O4
FeO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm 2 chất chỉ có tính oxi hóa
Fe(NO3)2
FeCl3
FeO
Fe2O3
Fe2O3
Fe2(SO4)3
Fe(OH)2
FeO
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhận định sai
Sắt tan dc trong dd CuSO4
Sắt tan dc trong dd FeCl2
Sắt tan dc trong dd FeCl3
Đồng tan dc trong dd FeCl3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cthuc hóa học của sắt III clorua
FeCl2
FeSO4
FeCl3
Fe2(SO4)3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy kim loại bị thụ động trong HNO3 đặc nguội là
Al , Fe , Cr
Al , Fe , Ag
Cr , Cu , Zn
Cu , Zn , Ag
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