
ÔN TẬP GIỮA KI II 10
Quiz
•
Chemistry
•
10th Grade
•
Medium
c3 Thao
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron lớp ngoài cùng của các nguyên tử Halogen là
A. ns2np4.
B. ns2np5
C. ns2np6
D. (n – 1)d10ns2np5.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắp xếp theo chiều tăng tính oxi hóa của các nguyên tử là
A. I, Cl, Br, F
B. Cl, I, F, Br
C. I, Br, Cl, F
D. I, Cl, F, Br
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phòng thí nghiệm người ta thường điều chế clo bằng cách
A. điện phân nóng chảy NaCl.
.
B. điện phân dung dịch NaCl có màng ngăn.
C. phân huỷ khí HCl.
D. cho HCl đặc tác dụng với KMnO4 .
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thuốc thử dùng để phân biệt dung dịch NaF và dung dịch NaCl là
A. dung dịch BaCl2
B. khí Cl2
C. dung dịch AgNO3
D. dung dịch Br2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây thường được dùng để diệt khuẩn và tẩy màu ?
A. O2
B. N2
C. Cl2
D. CO2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch axit nào sau đây không thể chứa trong bình thủy tinh?
A. HCl
B. HF
C. HNO3
D. H2SO4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thuốc thử thường dùng để nhận biết ion clorua là
A. bạc nitrat.
B. quỳ tím.
C. brom.
D. tinh bột.
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