Dãy kim loại nào sau đây được sắp xếp theo chiều hoạt động hóa học GIẢM dần?
Câu hỏi trắc nghiệm Hóa 9- HK1

Quiz
•
English
•
6th - 8th Grade
•
Medium
hanh thi
Used 6+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cu, Fe, K, Mg, Zn, Al
Zn, K, Cu, Al, Fe, Mg
K, Mg, Al, Zn, Fe, Cu
Cu, Fe, Zn, Al, Mg, K
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy kim loại được sắp xếp theo chiều hoạt động hoá học TĂNG dần
K, Al, Mg, Cu, Fe
Cu, Fe, Mg, Al, K
K, Cu, Al, Mg, Fe
Cu, Fe, Al, Mg, K
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy oxit nào có thể tác dụng với nước sinh ra chất làm quì tím hoá đỏ?
BaO, K2O, MgO
CO2 , SO3, N2O5
Na2O, K2O, SO2
BaO, K2O, CO2
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy các hợp chất nào sau đây làm đổi màu quỳ tím thành màu xanh?
NaOH, KOH, Mg(OH)2, Al(OH)3
Ca(OH)2, NaOH, KOH, Ba(OH)2
Fe(OH)2, Mg(OH)2, Al(OH)3, Ca(OH)2
KOH, Fe(OH)3, Zn(OH)2, Al(OH)3
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy bazơ nào bị nhiệt phân hủy?
Fe(OH)2, Cu(OH)2, Al(OH)3, Zn(OH)2
NaOH, Fe(OH)3, Zn(OH)2, KOH
NaOH, KOH, Ca(OH)2, Ba(OH)2
Fe(OH)2, Cu(OH)2, Al(OH)3, Ba(OH)2
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Những dãy bazơ nào vừa tác dụng được với dung dịch axit, vừa tác dụng được với dung dịch muối?
Ba(OH)2, NaOH, KOH
Cu(OH)2, NaOH, KOH
Ca(OH)2, Fe(OH)3, Ba(OH)2
Mg(OH)2, Fe(OH)3, Cu(OH)2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Có những chất sau: H2O, KOH, K2O, CO2. Số cặp chất có thể tác dụng với nhau là:
2 cặp
3 cặp
4 cặp
5 cặp
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