Axit axetic
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
trâm nguyễn
Used 1+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Hãy dùng một thuốc thử để nhận biết : C2H5OH , CH3COOH , KOH
A. Na
B. CuO
C. quì tím
D. NaOH
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Hãy điền từ thích hợp vào các chỗ trống.
a) Axit axetic là chất........, không màu, vị .........., tan .....................trong nước.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
b) Axit axetic là nguyên liệu để điều chế .........................
b) Axit axetic là nguyên liệu để điều chế .........................
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
c) Giấm ăn là dung dịch .................. từ 2 - 5%.
c) Giấm ăn là dung dịch .................. từ 2 - 5%.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
d) Bằng cách .................. butan với chất xúc tác thích hợp người ta thu được axit axetic.
d) Bằng cách .................. butan với chất xúc tác thích hợp người ta thu được axit axetic.
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Axit axetic có tính axit vì trong phân tử
A. Có 2 nguyên tử oxi
B. Có nhóm -OH
C. Có nhóm -OH và =C=O
D. có nhóm -OH kết hợp với nhóm =C=O tạo thành nhóm O=C-OH
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Trong các chất sau đây, chất nào có tính axit?
A. CH3 - COOH
B. CH3 - CHO
C. HO - CH2 - CHO
D. CH3 - OH
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