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Authored by Quoc Le
Chemistry
Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức cấu tạo của este đơn chức có dạng
RCOOH.
R-COO-R’
(RCOO)2R’
R(COOR’)2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất nào sau đây không phải là este?
C2H5COOCH
CH3COOC2H5
CH3OCH3.
HCOOC2H5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số đồng phân cấu tạo của hợp chất đơn chức có CTPT C3H6O2 là
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số đồng phân este ứng với công thức phân tử C4H8O2 là
5
3
2
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este Vinyl fomiat có công thức là
CH3COOCH3
HCOOC2H5
HCOOCH=CH2
HCOOCH3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các chất các chất nào sau đây được sắp xếp theo chiều nhiệt độ sôi tăng dần từ trái sang phải?
CH3COOH, HCOOCH3, CH3CH2OH.
CH3CH2OH, HCOOCH3, CH3COOH
HCOOCH3, CH3COOH, CH3CH2OH
HCOOCH3, CH3CH2OH, CH3COOH.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Etyl axetat tác dụng được với các chất
dd NaOH, dd HCl
dd HCl, dd AgNO3/NH3
dd NaOH, dd AgNO3/NH3
H2, dd NaOH
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