
H12 - bài 1.1 - Khái niệm, cấu tạo, danh pháp, tính chất vật lí
Authored by linhchi nguyen
Chemistry
12th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ester đơn chức có công thức chung là RCOOR’ với
A. R, R’ là gốc hydrocarbon hoặc nguyên tử hydrogen.
B. R là gốc hydrocarbon hoặc nguyên tử hydrogen, R’ là nguyên tử hydrogen.
C. R là gốc hydrocarbon, R’ là gốc hydrocarbon hoặc nguyên tử hydrogen.
D. R là gốc hydrocarbon hoặc nguyên tử hydrogen, R’ là gốc hydrocarbon.
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Hợp chất X có công thức cấu tạo như sau: CH3COOCH3. Tên gọi đúng của X là
A. ethylacetate. B. methylacetate. C. đimethylacetate. D. axeton.
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Hợp chất Y có công thức cấu tạo như sau: C2H5COOCH3. Tên gọi đúng của Y là
A. ethylpropanoate. B. methylpropanoate. C. propylacetate. D. butanoate.
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Một số ester được dùng trong tách, chiết các hợp chất hữu cơ là nhờ các ester
A. là chất lỏng dễ bay hơi. B. có mùi thơm, an toàn với người.
C. hòa tan tốt trong các hợp chất hữu cơ. D. đều có nguồn gốc từ thiên nhiên.
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ester methyl acrylate có công thức là
A. CH3COOCH3. B. CH3COOCH=CH2. C. CH2=CHCOOCH3. D. HCOOCH3.
A
B
C
D
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