OT 12 28
12th Grade
•31 Qs
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OT 12 28
Quiz
•
Architecture
•
12th Grade
•
Practice Problem
•
Medium
Thanh Nguyễn
Used 2+ times
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31 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dùng hóa chất nào sau đây để phân biệt 2 chất lỏng ancol etylic và phenol?
A. Nước brom. B. Quì tím.
C. Kim loại Na. D. Kim loại Cu.
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Lọ đựng chất nào sau đây có màu vàng lục?
A. Khí nitơ. B. Khí clo.
C. Khí flo. D. Hơi Brom.
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau là hợp chất hữu cơ đa chức?
A. Metylamin. B. Tristearin.
C. Valin. D. Glucozơ.
A
B
C
D
Answer explanation
VALIN VA GLU L TẠP CHỨC
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X mạch hở, có công thức phân tử C4H8O2. Cho X tác dụng với dung dịch NaOH, thu được muối natri focmat và ancol Y. Phân tử khối của ancol Y là
A. 32. B. 74.
C. 60. D. 46.
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cacbonhiđrat nào sau đây được sử dụng để điều chế thuốc súng không khói?
A.Saccarozơ. B.Tinh bột.
C.Xenlulozơ. D.Fructozơ
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dung dịch chất nào sau đây không làm đổi màu giấy quỳ?
A. Axit glutamic. B. Lysin.
C. Glyxin. D. Etylamin.
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Khí X tạo ra khi cho đất đèn (canxi cacbua) vào nước và khi cháy toả nhiệt lượng cao, được sử dụng để hàn cắt kim loại. Khí X là
A. C2H4. B. C2H2.
C. C4H10. D. CH4.
A
B
C
D
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