
KHTN 8 Hóa
Quiz
•
Science
•
9th Grade
•
Hard
Nguyễn Quý Bảo
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho dãy gồm các chất sau: NaCl, CaO, H2SO4, CO2, MgO, CuO. Số lượng các oxide có trong dãy là
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là oxide base.
CO2
CaO
SO3
Ba(OH)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình hóa học nào sau đây biểu diễn phản ứng tạo thành oxide kim loại.
2Mg + O2 → 2MgO
H2 + O2 → H2O
CO2 + H2O → H2CO3
Ca(OH)2 + CO2 → CaCO3 + H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho dãy gồm các chất sau: Fe2O3, NaOH, HCl, SO2, CO, K2O. Số lượng các oxide có trong dãy là
2
3
4
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là oxide acid.
MgO
CO2
Fe2O3
Na2O
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình hóa học nào dưới đây biểu diễn đúng phản ứng tạo thành oxide phi kim.
C + O2 → CO2
Na + O2 → Na2O
Fe + O2 → FeO
Al + O2 → Al2O3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Base là những hợp chất khi tan trong nước tạo ra ion H⁺.
Đ
S
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