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Thread: Reduction vs Hydrogenation

  1. #1 Reduction vs Hydrogenation 
    Forum Freshman
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    Dec 2009
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    If there is addition of H2, how do I decide whether the reaction is reduction or Hydrogenation.

    For example, in lab synthesis of cholestrol, when H2 is added to one of the reactants, the two - C=O in reactant break to 2 C-OH bonds. This is listed as reduction. ( why not hydrogenation?)


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  3. #2  
    Forum Cosmic Wizard i_feel_tiredsleepy's Avatar
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    Hydrogenation usually is a reduction reaction. Hydrogenation just means you're adding hydrogen, which is obvious in your example. Reduction refers to decrease in the oxidation state of the C=O part.

    http://en.wikipedia.org/wiki/Redox


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