
khueeeee cutii<333
Authored by Dung Trần
Chemistry
2nd Grade
Used 2+ times

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39 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố hóa học nào sau đây luôn có trong phân tử hợp chất hữu cơ?
. Oxi.
Hiđro.
Nitơ.
Cacbon.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các hợp chất nào sau đây là hợp chất hữu cơ?
CH4, C2H6, CO2
C6H6, CH4, C2H5OH.
CH4, C2H2, CO.
C2H2, C2H6O, CaCO3.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các chất sau, đâu là hiđrocacbon?
C2H5Cl.
. CO2.
NaHCO3
C4H10.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trị của cacbon, oxi, hiđro trong các hợp chất hữu cơ lần lượt là
IV, II, II.
IV, III, I.
II,IV, I
IV, II, I.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào kích thích quả mau chín?
metan
etilen.
khí cacbonic
hơi nước.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các hiđrocacbon sau đây: CH ≡ CH (I); CH3 ̶ CH3 (II); CH3 –CH2 – CH3 (III). Chất làm mất màu dung dịch brom ở nhiệt độ thường là
Chất (I)
Chất (III).
Chất (I) và (II).
Chất (II) và (III).
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dùng hóa chất nào sau đây có thể phân biệt giữa metan và etilen?
nước vôi trong.
dung dịch brom
oxi.
. nước.
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