Consider reactions 1 through 6. Those carbon atoms undergoing change, as part of a functional group, are colored (red and blue). In the cases shown, each carbon atom has either been reduced or oxidized. Your job is to identify the change in oxidation state that has occurred for each of the colored carbons.

Reaction			Red Carbon	Blue Carbon
1. CH3CH=CH2	Br2	CH3CHBrCH2Br	Reduced Oxidized	Reduced Oxidized
2. CH3CH=CH2	(i) B2H6 (ii) H2O2 , NaOH	CH3CH2CH2OH	Reduced Oxidized	Reduced Oxidized
3. CH3CH2CH=O	NaBH4	CH3CH2CH2OH	Reduced Oxidized
4. CH3CH2CH=O	Ag(+) H2O , pH>8	CH3CH2CO2H	Reduced Oxidized
5. CH3COCH2CO2H	Heat	CH3COCH3 + O=C=O	Reduced Oxidized	Reduced Oxidized
6. H2C=C(OH)C2H5	tautomerization	H3CCOC2H5	Reduced Oxidized	Reduced Oxidized

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