
Hữu cơ 9
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Pham Oanh
Used 13+ times
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18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương pháp lên men dung dịch rượu etylic loãng để điều chế
etilen
axit axetic
natri axetat
etyl axetat
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để phân biệt dung dịch 2 lọ đựng C2H5OH và CH3COOH ta dùng
Kim loại Na
Dung dịch NaOH
Quỳ tím
A và C đều đúng
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chuỗi phản ứng : Glicozo ==> X ==> Axit axetic. Chất X là
Rượu etylic
Khí cacbonic
etilen
đáp án khác
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rượu etylic và axit axetic đều tác dụng được với
Na2CO3
NaHCO3
NaCl
Na
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho sơ đồ phản ứng sau: C2H4 ==> X ==> CH3COOH ==> CH3COOC2H5. CHất X là
CH4
C6H6
C2H2
C2H5OH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có 3 chất lỏng mất nhãn, rượu etylic, axit axetic, etyl axetat. Làm cách nào để nhận biết 3 lọ trên
Na2CO3 khan
Na, H2O
Na2CO3
Cu, H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính chất vật lí của axetilen là
chất khí không màu, không mùi, ít tan trong nước, nặng hơn không khí
chất khí không màu, không mùi, ít tan trong nước, nhẹ hơn không khí
chất khí không màu, không mùi, tan tốt trong nước, nhẹ hơn không khí
chất khí không màu, mùi hắc , ít tan trong nước, nặnghơn không khí
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