Oxidation and Reduction

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  • Created by: JayaraamR
  • Created on: 21-04-17 15:32
What is the oxidation number of chromium in potassium dichromate?
+6
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What is the oxidation number of chromium in a chromium ion?
+3
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So what has chromium undergone when dichromate becomes chromium ion?
Reduction
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Why?
The oxidation number of chromium has reduced from +6 to +3. This means it has gained electrons. Since gain of electrons is reduction, chromium has been reduced.
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In a redox reaction with an alcohol, what would the dichromate ions act as, if they get reduced to chromium ions?
Oxidizing agent
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Other cards in this set

Card 2

Front

What is the oxidation number of chromium in a chromium ion?

Back

+3

Card 3

Front

So what has chromium undergone when dichromate becomes chromium ion?

Back

Preview of the front of card 3

Card 4

Front

Why?

Back

Preview of the front of card 4

Card 5

Front

In a redox reaction with an alcohol, what would the dichromate ions act as, if they get reduced to chromium ions?

Back

Preview of the front of card 5

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