Hóa 9
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Lê Bá Nguyễn
Used 185+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Các kim loại nào sau đây thụ động với axit đặc nguội?
Cu, Au, Pt
Fe, Al, Cr
Ag, Au, Pt
Al, Fe, Cu
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
NaOH + Al + H2O ->
Không phản ứng
Na(AlO2)2 + H2
NaAlO2 + Al(OH)3
NaAlO2 + H2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nung Fe(OH)2 trong không khí cho sản phẩm
FeO + H2O
Fe2O3 + H2
FeO + H2
Fe2O3 + H2O
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy các kim loại đều tác dụng với dung dịch axit clohiđric:
Al, Cu, Zn, Fe.
Al, Fe, Mg, Ag.
Al, Fe, Mg, Cu.
Al, Fe, Mg, Zn.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Phương trình hóa học nào sau đây là đúng?
ZnSO4 +2NaCl -> Na2SO4 + ZnCl2
2Fe + 3Cl2 -> 2FeCl3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hỗn hợp hai chất nào sau đây có xảy ra phản ứng?
ZnSO4 và Fe
FeSO4 và Cu
Mg và CuCl2
Al(NO3)3 và Cu
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy oxit vừa tác dụng với axit, vừa tác dụng với kiềm là:
ZnO, Al2O3, BeO
FeO, ZnO, CuO
CaO, MgO, Na2O
FeO, CaO, BaO
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