
Ngày 3/10
Authored by Lưu Hoa
Science
1st Grade
Used 1+ times

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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất este là
CH3CH2Cl.
HCOOC6H5.
CH3CH2NO3.
C2H5COOH.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất không phải là este là
HCOOCH=CH2
HCOOCH3.
CH3COOH.
CH3COOCH3.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất không phải là este là
HCOOC2H5.
C2H5CHO.
CH3COOCH = CH2.
(C15H31COO)3C3H5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức tổng quát của este no, đơn chức, mạch hở là
CnH2nO (n ≥ 1).
CnH2nO2 (n ≥ 1).
CnH2nO2 (n ≥ 2).
CnH2nO3 (n ≥ 2).
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong công thức phân tử este no, đơn chức, mạch hở có số liên kết π là
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số đồng phân este có công thức phân tử C3H6O2 là
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phân tử este X no, đơn chức, mạch hở, oxi chiếm 36,36% khối lượng. Số công thức cấu tạo thỏa mãn công thức phân tử của X là
2
3
4
5
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