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Alkenes from Hydrogenation of Alkynes

Alkenes can be easily obtained by hydrogenation of alkynes. An alkyne on controlled hydrogenation with hydrogen in the presence of Ni or Pd at 200°C give a corresponding alkene.

\[\ce{C_{n}H_{2n-2} + H_2 ->[Ni, 200 C] C_{n}H_{2n}}\]

Example

Ethyne gives ethene on hydrogenation.

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