
hóa học
Authored by yen hoang
Chemistry
12th Grade
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42 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1: Este etyl fomat có công thức là
A. CH3COOCH3
B. HCOOC2H5
C. HCOOCH=CH2
D. HCOOCH3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2: Đun nóng este CH3COOC2H5 với một lượng vừa đủ dung dịch NaOH, sản phẩm thu được là
A. CH3COONa và CH3OH
B. CH3COONa và C2H5OH.
C. HCOONa và C2H5OH
D. C2H5COONa và CH3OH
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3: Metyl fomat có công thức là
A. C2H3COOCH3
B. HCOOC2H5
C. HCOOCH3
D. C2H5COOCH3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4: Công thức nào sau đây là chất béo?
A. (C17H33COO)3C3H5
B. (HCOO)C3H5
C. (CH3COO)3C3H5
D. (C15H31COO)2C2H4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5: Đun chất béo X với dung dịch NaOH thu được natri oleat và glixerol. Công thức của X là
(C17H31COO)3C3H5
(CH3COO)3C3H5.
(C17H33COO)3C3H5
(C17H35COO)3C3H5.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6: Cho CH3COOC2H5 tác dụng với NaOH đun nóng thu được muối nào sau đây?
A. C2H5OH
B.CH3COONa
C. C2H5COONa
D. C3H7OH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 7: Cho 4,4 gam CH3COOC2H5 tác dụng với dung dịch KOH dư, khối lượng muối thu được sau phản ứng là
A. 4,1 gam
B. 4,2 gam
C. 4,8 gam
D. 4,9 gam
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