TEST 2
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây không dẫn điện được?
KCl rắn, khan
CaCl2 hòa tan trong nước
NaOH nóng chảy
HBr hòa tan trong nước
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dãy chất nào sau đây là chất điện li mạnh?
Ba(OH)2, HNO3, Na2SO4, CaCl2
NaOH, H2SO4, H3PO4, Ca(OH)2
NaCl, Cu(OH)2, AgCl, HCl
H2S, H2CO3, H2SO3, H3PO4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong các chất sau, chất nào là chất điện li yếu?
NaCl
NaOH
H2O
HCl
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đối với dung dịch axit yếu HCOOH 0,0001M, nếu bỏ qua sự điện li của nước thì đánh giá nào về nồng độ mol ion sau đây là đúng?
[H+] > 0,0001M
[H+] = 0,0001M
[H+] < 0,0001M
[H+] < [HCOO-]
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào dưới đây là axit theo A-rê-ni-ut?
Fe(NO3)3
CdSO4
CsOH
HBrO4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dãy chất nào sau đây vừa tác dụng với dung dịch HCl vừa tác dụng với dung dịch NaOH?
Al(OH)3, Ca(OH)2, NaOH
NaOH, Be(OH)2, Sn(OH)2
Zn(OH)2, Pb(OH)2, Al(OH)3
Pb(OH)2, Zn(OH)2, Fe(OH)3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dung dịch của 1 bazơ ở 250C có
[H+] < 10-7M
[H+] > 10-7M
[H+] = 10-7M
[H+][OH-] > 10-14M
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