
QUIZ BH 7
Authored by Nguyễn Thanh Mai
Chemistry
9th - 12th Grade
Used 1+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở điều kiện thường, kim loại có độ cứng lớn nhất là
K
Fe
Cr
Al
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hợp chất kim loại kiềm có số oxi hóa là
+1
+2
+3
+4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit nào sau đây bị khử bởi khí CO ở nhiệt độ cao?
MgO.
CuO.
Na2O.
Al2O3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây không tác dụng với dung dịch Fe2(SO4)3?
Fe.
Cu.
Na.
Ag.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm các kim loại được xếp theo chiều tính khử tăng dần là
Mg, Cu, Zn.
Cu, Zn, Mg.
Cu, Mg, Zn.
Zn, Mg, Cu.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại Al không tan trong dung dịch nào sau đây?
HCl.
NaOH.
H2SO4.
NaCl.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để sản xuất vôi sống người ta nung đá vôi ở nhiệt độ cao. Công thức phân tử của vôi sống là
CaO.
Ca(OH)2.
CaSO4.
CaCO3.
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