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Chemistry LibreTexts

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.

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


Ethyne gives ethene on hydrogenation.