ôn tập hóa vô cơ
Quiz
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Chemistry
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Professional Development
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Practice Problem
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Medium
Văn Đỗ
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy CTHH nào sau đây gồm oxit bazơ
Cl2,P2O5,CuO,Al2O3
H2O,K2O,P2O5
CaO,CuO,BaO,MgO
H2O,CuO,BaO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhận định nào sau đây không đúng về oxit
oxit tác dụng với axit
oxit tác dụng với muối
oxit tác dụng với bazơ
oxit tác dụng với nước
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CaO + X → Ca(OH)2 / Chất X là
CuO
CaO
H2O
BaO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nêu hiện tượng khi cho acid chlohidric vào vỏ trứng, biết thành phần của vỏ trứng gồm CaCO3
Xuất hiện kết tủa
Xuất hiện bọt khí
Không có hiện tượng gì
dd axit đổi màu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cho vôi sống vào nước thì xuất hiện chất nào sau đây:
KOH
CaO
Ca(OH)2
Cu(OH)2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào sau đây gồm các axit mạnh
H2CO3,HCl,H2SO4
H2SO3,HNO3,HCl
H2SO4,HCl,HNO3
H2SO3,H2CO3,HCl
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zn + 2HCl → ZnCl2 + X , X là:
CO2
SO2
H2
CO
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