
12. đề ôn TN1
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Easy
sáng phạm
Used 8+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây không tác dụng với dung dịch NaOH:
A. CH3COOC2H5. B. C6H5OH.
C. C6H5NH2. D. CH3COOH.
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy đồng đẳng của etilen có công thức tổng quát là:
A. CnH2n (n ≥ 3). B. CnH2n-2 (n ≥ 2).
C. CnH2n+2 (n ≥ 1). D. CnH2n (n ≥ 2).
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nước cứng là nước chứa nhiều ion:
A. Al3+, Cr3+. B. Fe2+, Fe3+.
C. Ca2+, Mg2+. D. Na+, K+.
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất tham gia phản ứng tráng gương là:
A. Saccarozơ. B. Glucozơ.
C. Xenlulozơ. D. Tinh bột.
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây là vật liệu polime có tính dẻo?
A. Nilon-6,6. B. Amilopectin.
C. Xenlulozơ trinitrat. D. Poli(vinyl clorua).
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây là kim loại kiềm thổ:
A. K. B. Ca.
C. Ag. D. Fe.
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức chung của este tạo bởi axit cacboxylic no đơn chức mạch hở và ancol no đơn chức mạch hở là:
A. CnH2nO2. B. CnH2n+2O2.
C. CnH2n-2O. D. CnH2n-4O2.
A
B
C
D
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