
Oxit
Authored by Cương Duy
Chemistry
8th Grade
Used 1+ times

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22 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Khí oxi có công thức hóa học là gì?
O
O2
O3
2O
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy gồm toàn CTHH của oxit là:
CuO, Ag2O, PbO, HCl, CO
CO, CaO, NaOH, BaSO4
PbO, HCl, CO, CaO
CuO, Ag2O, PbO, CO, CaO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất gồm các oxit axit là:
CO2, SO2, NO, P2O5.
CO2, SO3, Na2O, NO2.
SO2, P2O5, CO2, SO3.
H2O, CO, NO, Al2O3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất gồm các oxit bazơ:
CuO, NO, MgO, CaO.
CuO, CaO, MgO, Na2O.
CaO, CO2, K2O, Na2O.
K2O, FeO, P2O5, Mn2O7.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi củaAl2O3 là:
Nhôm oxit
Đi nhôm tri oxit
Nhôm (III) oxit
Nhôm (II) oxit.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biết N có hoá trị III, hãy chọn công thức hoá học phù hợp với qui tác hoá trị trong đó có các công thức sau:
NO
N2O
N2O3
NO2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng nào dưới đây không phải là phản ứng hoá hợp:
3Fe + 3O2 -> Fe3O4
3S +2O2 - > 2SO2
CuO +H2 -> Cu + H2O
2P + 2O2 - > P2O5
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