
Cuộc đua thần tốc
Authored by gv huong
Chemistry
11th Grade
Used 1+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cặp hợp chất nào sau đây là hợp chất hữu cơ ?
CO2, CaCO3
CH3Cl, C6H5Br
NaHCO3, NaCN
CO, CaC2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là hydrocarbon ?
C4H8.
CH3OH.
HCOOH.
H2N-CH2-COOH.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là dẫn xuất của hydrocarbon ?
CH2=CH2.
CH3-CH2-CH3.
CH3COOC2H5.
CH≡CH.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương pháp tách biệt và tinh chế nào sau đây được ứng dụng để ngâm hoa quả làm siro?
Sắc kí cột.
Kết tinh.
Chiết.
Chưng cất.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây có công thức phân tử trùng với công thức đơn giản nhất?
HCOOCH3.
C2H4.
C2H5OH.
C2H4Cl2.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
31
59
60
42
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