ÔN TẬP HCVC- HÓA 9
Quiz
•
Physical Ed
•
9th Grade
•
Medium
Trang Phạm
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15 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Oxit tan trong nuước tạo dung dịch bazơ là
K2O, Na2O, CaO
Na2O, ZnO, BaO
CuO,FeO,BaO
CuO, BaO, ZnO
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Để phân biệt hai khí không màu CO2 và SO2 dùng thuốc thử nào?
nước Br2 dư
nước
NaOH dư
HCl
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nguyên nhân chủ yếu gây ra hiện tượng mưa axit là do chất khí nào sau đây?
CO
CO2
O2
SO2
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Để khử chua đất trồng trọt người ta thường dùng oxit nào sau đây?
CuO
MgO
CaO
FeO
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Oxit nào sau đây là oxit lưỡng tính
SO2
CO
CuO
Al2O3
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
pH= 13 là môi trường
trung tính
bazơ
lưỡng tính
axit
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Axit H2SO4 loãng tác dụng được với tất cả các chất trong dãy nào sau đây?
Cu(OH)2, Hg.
NaOH, Cu.
Fe, CuO
HCl, Mg
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