
Hóa [ CHƯƠNG 4 ]
Authored by Nyoko Sama
Science
10th Grade
Used 1+ times
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28 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các chất sau FeO, FeCl2 , Fe (OH)3, Fe2O3, FeSO4. Số hợp chất Fe có số oxi hóa +2 là
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của nitrogen trong hợp chất NH3 là
+3
-3
+1
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của Mn trong ion MnO4 là
+6
+7
+8
+2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong trường hợp nào sao đây, sulfur có số oxi hóa +6
H2S
SO2
S
K2SO4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của phosphorus trong hợp chất Na2S2O3 là
+2
+4
+6
-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong trường hợp nào sao đây nitrogen có số oxi hóa -3
N2
N2O
N2O3
NH4⁺
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các hợp chất H2S, SO2, SO3 H2SO4, NaSO4. Số hợp chất S có số oxi hóa +4 là
1
2
3
4
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