
Câu hỏi điện li 2
Authored by Ba Le
Chemistry
1st - 10th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây có khả năng dẫn điện?
A. Dung dịch đường.
C. Dung dịch rượu.
B. Dung dịch muối ăn.
D. Dung dịch benzen trong ancol
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào dưới đây không phân li ra ion khi hòa tan trong nước?
A. MgCl2.
B. HClO3.
C. Ba(OH)2.
D. C6H12O6 (glucozơ).
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào sau đây, trong nước đều là chất điện li mạnh?
A. H2SO4, Cu(NO3)2, CaCl2, H2S.
B. HCl, H3PO4, Fe(NO3)3, NaOH.
C. HNO3, CH3COOH, BaCl2, KOH.
D. H2SO4, MgCl2, Al2(SO4)3, Ba(OH)2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây làm xanh quỳ tím?
A. HCl.
B. NaOH.
C. Na2SO4.
D. KCl.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Các dung dịch NaCl, HCl, CH3COOH, H2SO4 có cùng nồng độ mol, dung dịch có pH nhỏ nhất là
A. HCl.
B. CH3COOH.
C. NaCl.
D. H2SO4.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để phân biệt dung dịch Na2SO4 với dung dịch NaCl, người ta dùng dung dịch
A. KOH.
B. HCl.
C. KNO3.
D. BaCl2.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nồng độ H+ của dung dịch HCl ở pH = 3 là
A. 0,001M
B. 0,003M
C. 0,1M
0,3M
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