
HÓA HỌC 11-CHƯƠNG 1+2
Authored by Chiến Ma
Chemistry
11th Grade
Used 2+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây à chất điện li yếu?
HCl
CH3COOH
NaCl
KOH
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây không dẫn điện được?
KCl rắn, khan.
CaCl2 nóng chảy.
NaOH nóng chảy.
HBr hòa tan trong nước.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây là chất điện li mạnh?
Mg(OH)2.
HClO.
HF.
AgNO3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
KMnO4, HClO, Mg(OH)2, HNO3, H2S, C2H5OH, CuSO4, CH3COOH. Số chất thuộc loại chất điện li yếu là
7.
4.
5.
6.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dung dịch Y chứa 0,02 mol Mg2+; 0,02 mol Na+; 0,03 mol Cl– và y mol SO42–. Giá trị của y là
0,015.
0,02.
0,03.
0,06.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình điện li nào sau đây không đúng ?
HCl → H+ + Cl-
CH3COOH ⇔ CH3COO- + H+
H3PO4 → 3H+ + PO43-
Na3PO4 → 3Na+ + PO43-
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đối với dung dịch axit yếu CH3COOH 0,10M, nếu bỏ qua sự điện li của nước thì đánh giá nào về nồng độ mol ion sau đây là đúng?
[H+] = 0,10M.
[H+] < [CH3COO-].
[H+] > [CH3COO-].
[H+] < 0,10M.
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