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Authored by Nguyen Tham
Chemistry
12th Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ester đơn chức có công thức chung là
RCOOR’.
RCOOH.
(RCOO)2R’.
RCOR’.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số ester có cùng công thức phân tử C3H6O2 là
2.
5.
4.
6.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất nào dưới đây thuộc loại ester?
HOCH2CH2CHƠ.
CH3CH2CH2COOH.
CH3CH2COOCH3.
HOCH2COCH3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ester 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).
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Benzyl acetate là ester có mùi thơm của hoa nhài.Công thức của benzyl acetate là
C2H5COOC6H5.
CH3COOC6H5.
. C6H5COOCH3
CH3COOCH2C6H5.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi của ester HCOOCH3 là
methyl acetate.
methyl formate
ethyl formate.
ethyl acetate
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ethyl propionate là ester có mùi thơm của dứa. Công thức của ethyl propionate là
HCOOC2H5.
C2H5COOC2H5.
C2H5COOCH3.
CH3COOCH3.
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