
ÔN ĐỀ MỨC ĐỘ NHẬN BIẾT
Authored by Hoàng Phương Thảo
Chemistry
12th Grade
Used 4+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Natri phản ứng với clo sinh ra sản phẩm nào sau đây?
NaClO
NaCl
NaOH
NaCl2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây tan hết trong dung dịch NaOH loãng, dư?
A. Al2O3. B. MgO. C. FeO. D. Fe2O3.
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số nguyên tử oxi có trong phân tử triolein là
2
4
5
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch chất nào sau đây làm quỳ tím chuyển thành màu đỏ?
A. C2H5OH. B. C3H5(OH)3. C. CH3COOH. D. CH3CHO.
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số liên kết peptit trong phân tử peptit Gly-Ala-Val-Gly là
2
3
4
1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nước tự nhiên chứa nhiều những cation nào sau đây được gọi là nước cứng?
A. Na+, Al3+. B. Na+, K+. C. Al3+, K+. D. Ca2+, Mg2+.
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại Al tan hết trong lượng dư dung dịch nào sau đây sinh ra khí H2?
A. Na2SO4. B. NaNO3. C. NaCl. D. HCl.
A
B
C
D
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