
ÔN TẬP - 12S
Authored by Thu Hiền
Chemistry
9th - 12th Grade
Used 3+ times

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58 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho dãy các chất: FeCl2, CuSO4, BaCl2, KNO3. Số chất trong dãy phản ứng được với dung dịch NaOH là
3
2
4
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hoà tan m gam Fe trong dung dịch HCl dư, sau khi phản ứng kết thúc thu được 1,12 lít khí H2. Giá trị của m là
5,6.
1,4.
11,2.
2,8.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron của ion Cr3+ là:
[Ar]3d2.
[Ar]3d4.
[Ar]3d5.
[Ar]3d3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit lưỡng tính là
CaO.
CrO.
Cr2O3.
MgO.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm hai chất chỉ có tính oxi hoá là
Fe2O3, Fe2(SO4)3.
FeO, Fe2O3.
Fe(NO3)2, FeCl3.
Fe(OH)2, FeO.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho 5,4 gam Al tác dụng hoàn toàn với dung dịch NaOH dư. Sau khi phản ứng kết thúc, thể tích khí H2 thoát ra là
4,48 lít.
3,36 lít.
6,72 lít.
2,24 lít.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắt có thể tan trong dung dịch nào sau đây?
MgCl2.
Fe(NO3)3.
AlCl3.
FeCl2.
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