
ôn tập chương 7-L2
Authored by thuần trương
Chemistry
10th Grade
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Cấu hình electron nào của nguyên tử halogen?
1s22s22p6
1s22s22p63s2
1s22s22p63s23p5
1s22s22p63s23p64s23d7
2.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Phương trình hóa học nào viết sai?
Br2 + Cu → CuBr2.
2HCl + Na2CO3 → 2NaCl + H2O + CO2.
Cl2 + Fe → FeCl2.
NaBr + AgNO3→ AgBr + NaNO3.
3.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Nước chlorine có tính tẩy màu là do:
HCl có tính acid mạnh.
Cl2 vừa có tính khử vừa có tính oxi hóa.
HClO có tính oxi hóa mạnh.
Cl2 có tính oxi hóa mạnh.
4.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Halogen không có tính khử là
fluorine.
bromine.
iodine.
chlorine.
5.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Trong y học, halogen nào sau đây được hòa tan trong cồn để dùng làm thuốc sát trùng ngoài da?
fluorine.
bromine.
iodine.
chlorine.
6.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Trong tự nhiên, nguyên tố chlorine tồn tại phổ biến nhất ở dạng hợp chất nào sau đây?
MgCl2
KCl
NaCl
HCl
7.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Ở điều kiện thường, halogen nào sau đây tồn tại ở thể lỏng, có màu nâu đỏ, gây bỏng sâu nếu rơi vào da?
F2
Cl2
Br2
I2
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