este 2023- 1
Quiz
•
Chemistry
•
9th Grade
•
Medium
ThuyAi lynguyen
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phân tử este có chứa nhóm chức
-OH
-CH=O
-COOH
-COO-
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là este?
CH3COOH
HCOOCH3
CH3CHO
CH3OH
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất sau: HCOOC2H5, CH3COOH, C2H5OH, CH3COOC2H5, H2NCH2COOH, CH3COONH4, C3H5(OOCC15H31)3, CH3OOC-COOC2H5 . Có bao nhiêu chất thuộc loại este?chất thuộc loại este?
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số liên kết xích ma trong phân tử etyl axetat là
1
10
13
12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số liên kết pi trong vinyl axetat là
13
2
1
11
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các este sau: metyl fomat; etyl acrylat; vinyl axetat; propyl fomat; metyl metacrylat.
Số este có chứa 1 liên kết pi trong phân tử là
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este X được tạo thành từ axit axetic và ancol metylic có công thức phân tử là
C4H8O2
C3H6O2
C5H10O2
C2H4O2
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