Hóa
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Thúy Đậu
Used 2+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
: Chất có nhiệt độ sôi cao nhất là
CH3CHO
C2H5OH
CH3COOH
C2H6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng giữa axit axetic với chất nào sau đây được gọi là phản ứng este hóa ?
C2H5OH
NaOH
K
CaCO3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cho 240 gam dung dịch fomalin 2,5% tác dụng với dung dịch AgNO3/NH3 dư, thu được m gam Ag. Giá trị của m là
21.6
43.2
10.8
86.4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Đốt cháy hoàn toàn 0,1 mol axit CH3 -CH=CH-COOH cần dùng a mol O2 thu được b mol CO2. Giá trị của a, b lần lượt là:
0,35 và 0,45
0,4 và 0,45
0,4 và 0,4
0,45 và 0,4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
: Cho phản ứng sau : CTPT của chất X là :
C6H10
C4H4
C4H6
C6H6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
: Andehit nào sau đây no ?
C2H5–CHO.
C6H5CHO
CH2=CH-CHO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây không làm mất màu dung dịch KMnO4 ?
Metan
Etilen
Bur-1-in
Vinylaxetilen
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