KHỞI ĐỘNG ONLINE 15/09

Quiz
•
Chemistry
•
12th Grade
•
Medium
Đạt Xuân
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ester đơn chức có công thức chung là
RCOOR’.
RCOOH.
(RCOO)2R’.
RCOR’.
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ethyl propanoate là ester tạo nên mùi thơm đặc trưng của quả dứa. Công thức của ethyl propanoate là
CH3COOC2H5.
C2H5COOCH2CH2CH3.
CH3COOCH2CH2CH3.
C2H5COOC2H5.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Số ester có cùng công thức phân tử C3H6O2 là
2
5
4
3
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Thực hiện phản ứng ester hoá giữa HOOC-COOH với hỗn hợp CH3OH và C2H5OH thu được tối đa bao nhiêu ester hai chức?
2
3
1
4
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ester X mạch hở có công thức phân tử C3H4O2. Tên gọi của là
vinyl acetate.
methyl acetate.
methyl formate.
vinyl formate.
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Thuỷ phân ester nào sau đây trong dung dịch NaOH dư thu được sodium formate?
CH3COOCH3.
CH3COOC2H5.
HCOOC2H5.
CH3COOC3H7.
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Công thức phân tử của oleic acid là
C2H5COOH.
C17H31COOH.
C17H33COOH.
C17H35COOH
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