
U2 | Acid, base, pH
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
Trần Hương
Used 6+ times
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39 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Hợp chất X được tạo thành từ oxygen và một nguyên tố khác. Chất X thuộc loại chất gì cho dưới đây?
Muối.
Acid.
Base.
Oxide.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây là oxide base?
CO2.
CaO.
SO3.
Ba(OH)2.
Answer explanation
Oxide base = kim loại + oxygen
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây tác dụng được với dung dịch NaOH?
Na2O.
CaO.
SO2.
Fe2O3.
Answer explanation
Vì SO2 là oxide acid nên sẽ tác dụng với NaOH (base)
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây là oxide lưỡng tính?
Fe2O3.
CaO.
SO3.
Al2O3.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây tác dụng được với dung dịch HCl?
Fe2O3
NaCl
CO2
HNO3
Answer explanation
Vì Fe2O3 là oxide base nên sẽ tác dụng với acid HCl
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cho sơ đồ phản ứng sau: Ca(OH)2 + ? → CaCO3 + H2O.
Chất để điền vào dấu ? là
HCl
CO2.
SO2.
CO.
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Dãy chất gồm các oxide là
CaO, AgNO3, CO2, HCl
P2O5, CaO
P2O5, Al2O3, HCl, CO2
AgNO3, P2O5, NaOH
Na2O, CO2, SO3, Al2O3
Answer explanation
AgNO3 là muối
NaOH: base
HCl: acid
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