
OT 12 32
Authored by Thanh Nguyễn
Architecture
12th Grade
Used 3+ times

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27 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dung dịch chất nào sau đây làm quỳ tím hóa xanh?
A. Metylamin. B. Axit axetic.
C. Glucozơ. D. Axit glutamic.
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây không phải là chất điện li?
A.FeCl3. B.HNO3. C.NaCl. D.C2H5OH
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kim loại Fe tan hết trong lượng dư dung dịch nào sau đây?
A. NaOH. B. H2SO4 đặc, nguội.
C. Zn(NO3)2. D. HCl.
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ở nhiệt độ cao, nhôm khử được oxit kim loại nào sau đây?
A. CaO. B. Na2O.
C. MgO. D. Fe2O3
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fe(NO3)2 thể hiện tính oxi hóa khi tác dụng với chất nào sau đây?
A.CuSO4. B.Mg. C.H2SO4 loãng. D.NaOH
A
B
C
D
Answer explanation
MUỐN THỂ HÍNH TÍNH OXH THÌ PHẢI VỀ Fe nên cho dđ Fe(NO3)2 TD Mg
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