03 test Este

Quiz
•
Chemistry
•
12th Grade
•
Medium
Giang Nguyễn
Used 6+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este no, đơn chức, mạch hở có công thức tổng quát là
CnH2nO2 (n ≥ 2).
CnH2n-2O2 (n ≥ 2).
CnH2n+2O2 (n ≥ 2).
CnH2nO (n ≥ 2).
Answer explanation
CH3COOC2H5 <=> C4H8O2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số este có cùng công thức phân tử C3H6O2 là
2
5
4
3.
Answer explanation
HCOOC2H5
CH3COOCH3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số nguyên tử hiđro trong phân tử metyl fomat là
6
8
4
2.
Answer explanation
metyl fomat: HCOOCH3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Benzyl axetat là este có mùi thơm của hoa nhài. Công thức của benzyl axetat là
C2H5COOC6H5.
CH3COOC6H5.
C6H5COOCH3.
CH3COOCH2C6H5.
Answer explanation
benzyl: -CH2C6H5
phenyl: -C6H5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este X được tạo bởi ancol etylic và axit fomic. Công thức của X là
HCOOCH3.
CH3COOCH3.
HCOOC2H5.
CH3COOC2H5.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Etyl propionat là este có mùi thơm của dứa. Công thức của etyl propionat là
HCOOC2H5.
C2H5COOC2H5.
C2H5COOCH3.
CH3COOCH3.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi của este CH3COOCH3 là
etyl axetat.
metyl propionat.
metyl axetat.
etyl fomat.
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