LUYỆN TẬP 2: HKI HÓA 9 21 - 22
Quiz
•
Chemistry
•
9th Grade
•
Hard
Đặng PThien
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43 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Không dùng quỳ tím, Thuốc thử để nhận biết Na2SO4 ; H2SO4 là :
BaCl2
Ba(OH)2
Zn
Cu
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây góp phần nhiều nhất vào sư hình thành mưa axit?
CO2
SO2
N2
Na2O
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Vôi sống có công thức hóa học là:
Ca
Ca(OH)2
CaO
CaCO3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy gồm các chất là oxit
Na2O, HCl.
P2O5, NaOH.
CaO, FeO.
SO3, H2SO4.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy các chất tác dụng được với nước tạo ra dung dịch bazơ là:
MgO, K2O, CuO, Na2O.
CaO, Fe2O3, BaO, Na2O.
CaO, K2O, BaO, Na2O.
Li2O, K2O, CuO, Na2O.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây là axit mạnh?
H3PO4
H2SO3
HNO3
H2CO3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Công thức hóa học nào sau đây là axit sunfuric?
H2S
H2SO3
HCl
H2SO4
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