
Quiz Hóa Học
Authored by Thuận Nguyễn
Chemistry
7th Grade

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất phản ứng được với dung dịch acid Clohiđric sinh ra chất khí nhẹ hơn không khí, cháy trong không khí với nhọn lửa màu xanh nhạt:
BaCO3
Ag
FeCl3
Zn
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Các khí ẩm được làm khô bằng CaO là:
H2; O2; N2.
H2; CO2; N2.
H2; O2; SO2.
CO2; SO2; HCl.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy nào sau đây gồm các chất tác dụng được với dung dịch Ca(OH)2
CO2, NaHCO3, Na2CO3
CO, Na2CO3, NaCl
CO2, NaCl, NaHCO3
CO, CO2, Na2CO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các loại phân bón sau, loại phân bón nào có lượng đạm cao nhất?
NH4NO3
NH4Cl
(NH4)2SO4
(NH2)2CO
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất tác dụng với axit sunfuric loãng tạo thành muối và nước:
Cu
CuO
CuSO4
CO2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Muối nào sau đây không bị nhiệt phân hủy
CaCO3
Na2CO3
KNO3
KClO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch Fe(NO3)3 có lẫn tạp chất AgNO3. Dùng kim loại nào sau đây để làm sạch dung dịch Fe(NO3)3
Ag
Fe
Cu
Zn
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