Oxidation
Authored by Lisa Thompson
Science
11th Grade
NGSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Oxidation number of O in its stable elemental form, O2:
0
-1
-2
+2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Oxidation number of Fe in Fe2O3:
0
-2
+2
+3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is oxidation number of Cr in
Cr2O72-?
-2
+2
+6
+12
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the oxidation state of Cl in ClO- ?
0
+1
-1
+2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the oxidation state of H in H2?
+2
+1
0
None of the above
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the oxidation state of Pb in PbO ?
+2
+4
0
-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
S in HSO4- ?
+5
-6
+6
+2
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