ôn gk1 h11
Quiz
•
Chemistry
•
KG
•
Practice Problem
•
Medium
Phuong Thu
Used 12+ times
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34 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây dẫn được điện?
NaCl.
C6H12O6 (glucozơ)
C12H22O11 (saccarozơ)
C2H5OH.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là chất điện li yếu?
KNO3
NaOH
HCl.
CH3COOH.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Các dung dịch axit, bazơ, muối dẫn điện được là do trong dung dịch của chúng có các
A.ion trái dấu.
B.anion (ion âm)
C.cation (ion dương)
D. chất.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Theo thuyết A-rê-ni-ut, chất nào sau đây là axit?
A. HCl.
B. C6H12O6 (glucozơ).
C. K2SO4.
D. NaOH.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là hiđroxit lưỡng tính?
A. Ba(OH)2.
B. Al(OH)3.
C. NaOH.
D. Ca(OH)2.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là muối trung hòa?
A. NaHCO3.
B. NaH2PO4.
C. NaHSO4.
D.Na2SO4.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Môi trường axit có nồng độ ion H+ thỏa mãn điều kiện nào sau đây?
A. [H+] < [OH-].
B. [H+] = 10-7.
C. [H+] > 10-7.
D. [H+] < 10-7.
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