hóa hk1
Authored by Pi Zip
Science
11th Grade
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55 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Chất nào sau đây là chất điện li yếu?
A. HCl.
B. HF.
C. KCl.
D. NH4NO3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây không phải là chất điện li?
A. HCl.
B. NaOH..
C. Cu(NO3)2.
D. C6H6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây khi hòa tan vào nước không bị điện li?
A.CuSO4.
B. C2H4.
C. BaCl2.
D. HBr.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất: NaCl, C2H4, CH3COOH, Ba(OH)2, KNO3. Số chất điện li là
2
3
4
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là chất điện li mạnh?
A. H2S.
B. CH3COOH.
C. (NH4)2SO4.
D. Mg(OH)2.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6: Dung dịch Al2(SO4)3 (bỏ qua sự điện li của nước) có chứa các ion
A. Al3+
B. SO42-, Al2+. -
C. Al3+, SO42-.
D. Al2(SO4)3, Al3+, SO42
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 7: Chất nào sau đây có tính bazơ?
A. NH3
B. H2SO4.
C. KCl. .
D. NH4Cl
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