đề cương hóa hk1
Authored by Hoang Trang
Chemistry
11th Grade
Used 3+ times
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55 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 1. Dung dịch nào sau đây có khả năng dẫn điện?
A. Dung dịch đường.
B. Dung dịch muối ăn.
C. Dung dịch rượu.
D. Dung dịch benzen trong ancol.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 2. Chất nào sau đây không dẫn điện được?
A. KCl rắn, khan.
B. NaOH nóng chảy.
C. CaCl2 nóng chảy
D. HBr hòa tan trong nước.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Chất nào sau đây thuộc loại chất điện li mạnh?
A. CH3COOH.
B. C2H5OH.
C. H2O.
D. NaCl.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dung dịch chất nào sau đây không làm đổi màu quỳ tím?
A. HCl.
B. Na2SO4.
C. Ba(OH)2.
D.HClO4.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dung dịch chất nào sau đây làm xanh quỳ tím?
A. HCl.
B. Na2SO4.
C. NaOH.
D.KCl
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím hóa đỏ?
A. HCl.
B. K2SO4.
C. KOH.
D.NaCl.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dãy chất nào sau đây đều là chất điện li mạnh?
A. HCl, NaOH, NaCl.
B. HCl, NaOH, CH3COOH
C. KOH, NaCl, HgCl2.
D. NaNO3, NaNO2, HNO2.
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