
ÔN TẬP ĐẦU NĂM HÓA 11
Authored by Thu Vũ
Chemistry
KG - 11th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của N trong NO
+2
+3
-3
-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hóa học của axit sunfuric
H2S
H2SO4
HCl
H2O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hóa học của axit clohidric là
HF
HBr
HCl
HI
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Muối ăn có công thức hóa học
NaBr
NaOH
NaCl
Na2SO4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa Cl trong Cl2 là
0
-1
+1
+3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất oxi hóa là
HCl
Fe
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng:
Chất khử là
Mg
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