
Hóa học Quiz
Quiz
•
Chemistry
•
8th Grade
•
Medium
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23 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Dãy các chất tác dụng được với nước tạo ra dung dịch bazơ là:
K2O, CuO, Na2O
CaO, Fe2O3, K2O
K2O, BaO, Na2O
Li2O, K2O, CuO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch làm quỳ tím chuyển sang màu xanh và dung dịch phenolphtalein từ không màu chuyển sang màu đỏ là
KCl
NaCl
KOH
H2SO4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hơi thở, chất khí làm đục nước vôi trong là
O2
CO2
NO2
CO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất tác dụng với nước tạo ra dung dịch bazơ là
CO2
Na2O
SO2
Fe2O3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho phương trình hóa học: Na2CO3 + 2HCl → 2NaCl + X + H2O. Vậy X là
SO2
CO2
H2
Cl2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất tác dụng với nước tạo ra dung dịch axit là
K2O
CuO
P2O5
CaO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lưu huỳnh trioxit (SO3) không tác dụng được với chất nào sau đây:
nước
axit
oxit bazơ
bazơ
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