
chong liet 4
Authored by nhi duong
Chemistry
2nd Grade
Used 1+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ion kim loại nào sau đây có tính oxi hóa yếu nhất?
A. Ag+.
B. Mg2+.
C. Fe2+.
D. Al3+.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kim loại nào sau đây là kim loại kiềm thổ?
A. K.
B. Na.
C. Mg.
D. Al.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng thủy phân chất béo luôn thu được
A. axit béo.
B. glixerol.
C. muối natri của axit béo.
D. muối kali của axit béo.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch metylamin làm quỳ tím chuyển sang màu
A. tím.
B. hồng.
C. đỏ.
D. xanh
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức của nhôm sunfat là
A. AlCl3.
B. Al2(SO4)3.
C. Al(NO3)3.
D. Al2S3.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong công nghiệp, kim loại nào sau đây được điều chế bằng phương pháp điện phân nóng chảy?
A. Ag.
B. Na.
C. Cu.
D. Fe.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số nguyên tử hiđro trong phân tử fructozơ là
A. 6.
B. 22.
C. 5.
D. 12.
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