
hóa học
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Easy
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tác nhân chủ yếu gây ra mưa axit là
CO2,NO2
SO2,NO2
NO,NO2
SO2,CO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây có pH<7
NaOH
NaCl
CH3COOCH
NH3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IOn nào sau đây có tính oxy hóa mạnh nhất
Ca2+
Ag+
Fe2+
Zn2+
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hóa học nào sau đây là đơn chất chất?
O2
HCl
H2O
NaCl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là đơn chất kim loại?
S
P
Ca
C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
chất nào sau đây là oxit axit
FeO
Al2O3
CrO3
Na2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Axit cacboxylic nào sau đây có trong giấm ăn
Axit fomic
Axit axetic
Axit laticlatic
Axit stearic
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