Oxidation numbers - OCR Chemistry A
Authored by Jack Brown
Chemistry
12th Grade
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21 questions
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1.
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20 sec • 1 pt
What's the oxidation state of iron in Fe(s)?
2.
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20 sec • 1 pt
What's the ox. no. of iron in Fe3+?
3.
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20 sec • 1 pt
What's the ox no. of iron in FeCl2?
4.
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30 sec • 1 pt
What's the ox no. of iron in K2FeO4?
5.
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20 sec • 1 pt
What's the ox no. of Cl in ClO-?
6.
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30 sec • 1 pt
What's the oxidation number of Cl in HClO3?
7.
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30 sec • 1 pt
What's the oxidation number of nitrogen in NO2-?
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