
TEST KHTN 8
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
Huy Bảo
Used 10+ times
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44 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là acid?
NaNO3
Na2SO4
HNO3
NaCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acid có vị chua, có trong giấm ăn với nồng độ 2 – 5%
Hydrochloric acid (HCl).
Nitric acid (HNO3).
Sulfuric acid (H2SO4).
Acetic acid (CH3COOH).
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây tác dụng với sulfuric acid sinh ra khí H2?
Ba(OH)2
Ag, Cu
K, Mg
BaO, Na2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch làm quỳ tím chuyển sang màu xanh là
ZnSO4.
KNO3.
NaOH.
K2O.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Base được tạo bởi Aluminium liên kết với nhóm hydroxide có công thức hóa học là
AlCl2.
Al(OH)3 .
Al2OH.
AlSO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch có giá trị pH < 7 là
KOH
HNO3.
H2O.
Ba(OH)2.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch có giá trị pH > 7 là
H2S
HCl
H2O
Ba(OH)2.
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