
PHỤ ĐẠO BUỔI 5
Authored by Xuan Ky
Chemistry
12th Grade
Used 2+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Chất nào sau đây KHÔNG dùng để làm mềm nước có tính cứng tạm thời?
NaNO3.
Ca(OH)2.
NaOH.
Na2CO3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Chất nào sau đây tác dụng với dung dịch HCl sinh ra khí H2?
NaHCO3.
NaOH.
Al.
Cu.
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Sắt phản ứng với chất nào sau đây sinh ra hợp chất sắt(II)?
Cl2.
HNO3 đặc, nóng.
H2SO4 đặc, nóng.
HCl loãng
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Thuỷ phân metyl axetat trong NaOH thu được CH3COONa và ancol nào sau đây?
C2H5OH.
C3H7OH.
CH3CHO.
CH3OH
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Chất béo là trieste của axit béo với
ancol etylic.
glixerol.
ancol metylic.
etylen glicol.
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Trong công nghiệp, nhôm đuợc sản xuất bằng phương pháp điện phân nóng chảy chất nào sau đây?
AlCl3.
Al2O3.
Al(OH)3.
Al(NO3)3.
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Tơ nào sau đây thuộc loại tơ nhân tạo?
Tơ xenlulozơ axetat.
Tơ nitron.
Tơ capron.
Tơ tằm.
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