In the Hydrogenation of Double Bonds,a Catalyst Is Needed

question 21

Multiple Choice

In the hydrogenation of double bonds,a catalyst is needed.In the first step,the reactants must come into contact with a metal surface.This step is known as

• A) adsorption.
• B) diffusion.
• C) reaction.
• D) desorption.
• E) none of the above

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