
Câu hỏi về base
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Hang Mai
Used 1+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây làm đổi màu quỳ tím thành xanh?
Potassium hydroxide.
Acetic acid.
Nước.
Sodium chloride.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây không làm đổi màu quỳ tím thành xanh?
Nước xà phòng.
Nước ép mướp đắng.
Nước đường.
Nước bồ kết.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm các dung dịch nào sau đây làm đổi màu quỳ tím thành xanh?
NaOH, BaCl2, HBr, KOH.
NaOH, Na2SO4, KCl, H2O2.
NaOH, Ba(OH)2, Ca(OH)2, KOH.
NaOH, NaNO3, KOH, HNO3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có thể dùng chất nào sau đây để khử độ chua của đất?
Vôi tôi (Ca(OH)2).
Hydrochloric acid.
Muối ăn.
Cát.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là base?
NaOH.
HCl.
NaCl.
H2SO4.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong số các base sau đây, base nào là base tan trong nước?
Mg(OH)2.
KOH.
Cu(OH)2.
Fe(OH)3.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím hóa xanh?
KCl.
Na2SO4.
NaOH
NaCl.
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