
test qkhaiA4
Authored by Quang Khải
Chemistry
9th - 12th Grade
Used 2+ times

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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố thuộc nhóm halogen (nhóm VIIA trong bảng HTTH) là
oxygen
nytrogen
hydrogen
iodine
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cấu hình electron lớp ngoài cùng của nguyên tử các nguyên tố nhóm halogen là
ns2np5
ns2np4
ns2np3
ns2np6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở nhiệt độ thường,chất nào sau đây là chất lỏng màu đỏ nâu?
F2
Br2
I2
Cl2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của nguyên tố halogen trong phân tử HBr là
+1
-1
+2
-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cho phản ứng: F2 + H2O => HF + O2 , vai trò của F2 trong phản ứng này là
chất oxi hóa
chất khử
chất oxi hóa và chất khử
chất axit
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
thuốc khử để nhận biết tinh bột và một loại keo dán nhựa là
I2
F2
Br2
Cl2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
khi chất lỏng Br2 bị đổ xuống nền nhà,hóa chất được dùng để xử lí tốt nhất là
H2O
NaOH
HCl
NaCl
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