111111
Authored by Kim Ngân
Chemistry
12th Grade
Used 21+ times
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39 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1:Ở nhiệt độ cao khí CO khử được oxit nào sau đây thành kim loại?
MgO.
Al2O3.
CuO
CaO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây tác dụng với nước ở điều kiện thường?
Cr
Cu
Ag
Ba
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây không tác dụng với dung dịch axit clohiđric?
Mg
Fe
Ag
Al
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây thụ động trong dung dịch HNO3 đặc, nguội
Al
Ag
Cu
Mg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây bị thụ động hóa trong axit sunfuric đặc, nguội?
Cu
Ag
Fe
Mg
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại phản ứng với dung dịch HCl loãng sinh ra khí H2 là
Hg
Cu
Fe
Ag
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong công nghiệp, nhóm kim loại nào sau đây chỉ được điều chế bằng phương pháp điện phân nóng chảy
Ag, Na, Ba.
Mg, Ca, K.
Cu, Zn, Cr.
Fe, Cr, K
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