
Hoá HK1
Authored by Cute Nhi
Chemistry
12th Grade
Used 1+ times

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52 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este etyl fomiat có công thức là
CH3COOCH3
HCOOC2H5
HCOOCH=CH2
HCOOCH3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là este
HCOOH
CH3CHO
CH3OH
CH3COOC2H5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở điều kiện thích hợp hai chất nào sau đây phản ứng với nhau tạo thành metyl axetat
CH3COOH,CH3OH
HCOOH,CH3OH
HCOOH,C2H5OH
CH3COOH,C2H5OH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho chuỗi biến đổi:C2H2->X->Y->Z->CH3COOC2H5.X,Y,Z lần lượt là
C2H4 CH3COOH C2H5
CH3CHO C2H5OH CH3COOH
CH3CHO CH3COOH C2H5OH
CH3CHO C2H4 C2H5OH
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho dãy các chất:CH3COOH,CH3COOCH5 ,HCOOH ,C2H5OH , HCOOCH3.Số chất trong dãy tham gia phản ứng tráng gương là
4
5
3
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đun nóng este CH3COOCH2CH3 với một lượng vừa đủ dung dịch NaOH, sản phẩm thu được là
CH3COONa và CH3CH2OH
CH3COONa và CH3OH
CH3CH2COONa và CH3OH
C2H5COONa và CH3CH2OH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số đồng phân este ứng với công thức phân tử C3H6O2 là
5
2
4
3
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