
HÓA CK1
Authored by Duy Khang
Chemistry
11th Grade
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 13. Dãy chất nào dưới đây chỉ gồm những chất tan và điện li mạnh?
A. HNO3, Cu(NO3)2, Ca3(PO4)2, H3PO4
B. H2SO4, NaCl, KNO3, Ba(NO3)2
C. CaCl2, CuSO4, CaCO3, HNO3
D. KCl, H2SO4, H2O, CaCl2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 14. Dãy chất nào sau đây, trong nước đều là chất điện li yếu?
A. H2S, H2SO3, H2SO4.
B. H2CO3, H3PO4, CH3COOH, Ba(OH)2.
C. H2S, CH3COOH, HClO
D. H2CO3, H2SO3, HClO, Al2(SO4)3.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 15.Theo định nghĩa Acid−Base của Bronstet, các chất và ion thuộc dãy nào dưới đây là Base?
A. CO32-, CH3COO−
B. NH4+, HCO3-, CH3COO−
C. ZnO, Al2O3, HSO4-
D. HSO4-, NH4+
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 16. Theo định nghĩa Acid−Base của Bronstet, các chất và ion thuộc dãy nào dưới đây là lưỡng tính?
A. CO32-, CH3COO−
B. ZnO, Al2O3, HSO4-, NH4+
C. NH4+, HCO3-, CH3COO−
D. ZnO, Al2O3, HCO3-, H2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 18. Cho phenolphtalein vào dung dịch nào sau đây sẽ hóa hồng
A. dung dịch NaCl
B. dung dịch BaCl2
C. dung dịch NaOH
D. dung dịch HCl
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 19. Khi hòa tan trong nước, chất nào sau đây làm quỳ tím chuyển màu xanh?
A. NaNO3.
B. Na2CO3
C. NaHSO4.
D. CuCl2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3. N2 thể hiện tính khử trong phản ứng với
A. H2.
B. O2.
C. Li.
D. Mg.
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