
ÔN TẬP 12
Authored by kha bap
Chemistry
12th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để pha loãng H2SO4 đặc cách làm nào sau đây đúng?
cách 1
cách 1 và 2
cách 2
cách 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
acid H2SO4 loãng tác dụng với Fe tạo thành sản phẩm
Fe2(SO4)3 và H2
FeSO4 và SO2
FeSO4 và H2.
Fe2(SO4)3 và SO2.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất: Cu, CuO, BaSO4, Mg, KOH, FeO, Na2CO3. Số chất tác dụng với dung dịch H2SO4 loãng là
4
5
6
7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào sau đây đều tác dụng với dd H2SO4 loãng
Cu, KOH, MgO, Na2CO3
HCl, KOH, FeO, Na2SO3
Fe, KHCO3, CuO, BaCl2
Ag, NaOH, BaCl2, Na2CO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có các thí nghiệm sau:
(I) Nhúng thanh iron (Fe) vào dung dịch H2SO4 loãng.
(II) Iron (III) Oxide ( Fe2O3) tác dụng với dung dịch H2SO4 loãng
(III) BaCl2 tác dụng với dung dịch H2SO4
(IV) Nhúng lá copper (Cu) vào dung dịch H2SO4 loãng.
Số thí nghiệm xảy ra phản ứng oxi hóa khử là
1
2
3
4
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