
KTGK2_Hóa 10_2024
Authored by Lê Thành Trung
Chemistry
10th Grade
Used 4+ times

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36 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số oxi hóa của sulfur trong các hợp chất sau: H2S, S, SO2, H2SO4, K2SO4 lần lượt là
-2, 0, +4, +6, +6.
-2, 0, +2, +4, +6
-2, 0, +4, +4, +6
0, -2, +4, +6, +4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong hợp chất số oxi hóa của hydrogen thường là
0
+1
-1
-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong hợp chất, số oxi hóa của oxygen thường là
0
+1
-1
-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số oxi hóa của iodine trong các chất sau: KI, I2, KIO3 lần lượt là
0, +1, +3
-1, 0, +5
-1, 0, +3
+1, +3, +5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số oxi hóa của chlorine trong các chất sau: KCl, Cl2, KClO, KClO4 lần lượt là
-1, 0, +1, +7
-1, 0, +1, +4
+1, 0, -1, -4
-1, 0, +3, +7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số oxi hóa của Fe trong các chất sau: Fe, FeCl2, Fe3O4 lần lượt là
0, +2, +3
0, +2, +8/3
+2, +3, +8/3
0, -2, +3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Số oxi hóa của nitrogen trong hợp chất NH4NO3 lần lượt là
+4, +5
-4, +6
-3, +5
+3, +5
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