
hóa học
Authored by Tai Nguyen Thanh
Science
1st Grade
Used 28+ times

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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
: Ankan là những hiđrocacbon no, mạch hở, có công thức chung là
CnH2n+2 (n ≥1).
. CnH2n (n ≥2).
CnH2n-2 (n ≥2).
CnH2n-6 (n ≥6).
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bậc của nguyên tử cacbon đánh dấu (*) trong hợp chất sau là
bậc I
bậc II
bậc III.
bậc IV
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức cấu tạo thu gọn của 2,2-đimetylpropan là
(CH3)2CHCH2CH3
(CH3)4C
CH3CH2CH2CH2CH3
CH3CH2CH(CH3)2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hiện nay, nhiều nơi ở nông thôn đang sử dụng hầm biogas để xử lí chất thải trong chăn nuôi gia súc, cung cấp nhiên liệu cho việc đun nấu. Chất dễ cháy trong khí biogas là
Cl2
CH4.
. CO2.
. N2.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức cấu tạo thu gọn của 2,3-đimetylbutan là
(CH3)2CH-CH(CH3)2.
. (CH3)3C-C(CH3)3.
(CH3)2C-CH(CH3)2
. CH3CH2C(CH3)3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phần trăm khối lượng cacbon trong ankan X là 83,33 %. Công thức phân tử của X là
CH4
C3H8
C5H12
C10H22
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ankan X có công thức cấu tạo như sau:
Tên gọi của X là
3- isopropylpentan.
2-metyl-3-etylpentan
3-etyl-2-metylpentan
3-etyl-4-metylpentan
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