
Đề cương hoá
Authored by Ha thi
Chemistry
10th Grade

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48 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trong bảng tuần hoàn các nguyên tố hoá học halogen thuộc nhóm
VIIIA
IA
VIIA
IIA
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cấu hình electron lớp ngoài cùng của nguyên tử các nguyên tố halogen là
ns²np⁵
ns²np³
ns²np⁶
ns²np⁴
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Halogen phản ứng mãnh liệt với hydrogen ngay cả trong bóng tối là
Cl2
Br2
I2
F2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cho phản ứng: SO2 + Br2 + 2H2O → H2SO4 + 2HBr.
Bromine đóng vai trò
Vừa là oxi hoá vừa là khử
Chất khử
Chất oxi hoá
Không là oxi hoá , không là khử
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nguyên tố có tính oxi hoá yếu nhất thuộc nhóm VIIA là
Fluorine
Iodine
Clorine
Bromine
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ở điều kiện thường đơn chất Cl có màu
Tím đen
Vàng lục
Nâu đỏ
Lục nhạt
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Đi từ F -> I độ âm điện của các nguyên tử nguyên tố như nào
Giảm dần
Tăng dần
Tăng sau đó giảm dần
Giảm sau đó tăng dần
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