yeu nam cute
9th Grade
•39 Qs
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yeu nam cute
Quiz
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Life Skills
•
9th Grade
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Practice Problem
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Medium
Khoi Minh
Used 4+ times
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39 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2 (NB). Dãy các chất thuộc loại hợp chất muối là
A. HCl, H2SO4.
B. NaOH, KOH.
C. Al2(SO4)3, NaCl.
D. CuO, CO2.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3 (TH). Dung dịch nào sau đây phản ứng với sắt nguyên chất
A. Cu(NO3)2
B. H2SO4 đặc nguội.
C. MgCl2
D. FeSO4.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4 (NB). Tính tan của muối BaSO4
A. Tan vô hạn trong nước.
B. Không tan.
C. Tan rất ít.
D. Có khả năng bay hơi.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5. (TH). Dung dịch đồng (II) sunfat có thể tác dụng được với chất nào sau đây:
A. Fe.
B. Ag.
C. Cu(OH)2.
D. NaNO3.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6 (TH). Cho dung dịch axit sunfuric loãng tác dụng với muối natri sunfit (Na2SO3). Chất khí nào sinh ra?
A. H2.
B. SO2
C. H2S
D. O2.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 7 (TH). Để làm sạch dung dịch đồng (II) nitrat có lẫn bạc nitrat; người ta dùng kim loại:
A. Mg.
B. Cu.
C. Fe.
D. Au
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 8 (TH). Trộn 2 dung dịch nào sau đây sẽ không xuất hiện kết tủa ?
A. BaCl2, Na2SO4.
B. BaCl2, AgNO3.
C. NaCl, K2SO4.
D. Ba(NO3)2, Na2CO3.
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