
9C - Bài 1
Authored by Sinh Ngô Nam
Chemistry
2nd Grade
Used 1+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Câu 1: Chất tác dụng với nước tạo ra dung dịch bazơ là:
A. CO2,
B. Na2O.
C. SO2,
D. P2O5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2: Chất tác dụng với nước tạo ra dung dịch axit là
A. K2O.
B. CuO.
C. P2O5.
D. CaO.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Câu 3: Chất khí nào sau đây là nguyên nhân gây ra hiệu ứng nhà kính ?
A. CO2
B. O2
C. N2
D. H2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4: Sắt (III) oxit (Fe2O3) tác dụng được với:
A. Nước, sản phẩm là axit.
B. Axit, sản phẩm là muối và nước.
C. Nước, sản phẩm là bazơ.
D. Bazơ, sản phẩm là muối và nước.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5: Dãy chất sau đây chỉ gồm các oxit:
A. MgO, Ba(OH)2, CaSO4, HCl.
B. MgO, CaO, CuO, FeO.
C. SO2, CO2, NaOH, CaSO4
D. CaO, Ba(OH)2, MgSO4, BaO.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6: Dãy chất gồm các oxit axit là:
A. CO2, SO2, NO, P2O5.
B. CO2, SO3, Na2O, NO2.
C. SO2, P2O5, CO2, SO3.
D. H2O, CO, NO, Al2O3.
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