
Halogen
Quiz
•
Chemistry
•
3rd Grade
•
Practice Problem
•
Medium
thời nguyễn
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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Số electron ở lớp ngoài cùng của mỗi nguyên tử nguyên tố halogen là
5
7
2
8
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Tính chất hoá học đặc trưng của các đơn chất halogen là
tính khử.
tính base.
tính acid.
tính oxi hoá.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong tự nhiên, nguyên tố fluorine tồn tại phổ biến nhất ở dạng hợp chất là
Na3AlF6
NaF.
HF
CaF2
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ở điều kiện thường, halogen tồn tại ở thể rắn, có màu đen tím là
F2
Cl2
I2
Br2
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Muối nào có nhiều nhất trong nước biển với nồng độ khoảng 3% ?
NaCl
KCl
NaF
MgCl2
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Số oxi hoá cao nhất mà nguyên tử chlorine thể hiện được trong các hợp chất là
-1
+7
+5
+1
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Các nguyên tố halogen thuộc nhóm nào trong bảng tuần hoàn?
II A
VI A
VII A
VIII A
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