
Hóa GK II - 10A
Authored by Anh Nguyễn
Chemistry
10th Grade
Used 3+ times

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42 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hóa của nguyên tử S trong hợp chất SO2 là:
+2.
+4.
+6.
-1
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hóa của sodium trong NaCl là:
+2.
-1.
+1.
-2.
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hoá của nitrogen trong NH4NO3 là:
-3, -3
+3, +5
-3, +5
+5, +5
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hóa của sulfur trong SO42- là
+2
+4
+6
-2
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hóa của S trong H2S, S, SO2, H2SO4 lần lượt là
-1, 0, +1, +3
-2, 0, +2, +6
-2, 0, +4, +6
+2, 0, +4, +6
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hóa của iron và chlorine trong FeCl3 lần lượt là
+3, +1
+3, -1
-1, +3
+1, -3
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Số oxi hóa của chromium trong K2Cr2O7 là
+1
+4
+6
+12
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