What does the hydrogenation of an alkene produce?

An example of an alkene addition reaction is a process called hydrogenation.In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.

What is the expected product from the hydrogenation of a ketone in the presence of a nickel catalyst?

In the catalytic hydrogenation of ketones, a molecule of hydrogen is added across the carbon-oxygen double bond to ultimately furnish an alcohol as the final product.

What does hydrogenation of alkenes require?

Although the hydrogenation of an alkene is a thermodynamically favorable reaction, it will not proceed without the addition of a catalyst. Common catalysts used are insoluble metals such as palladium in the form Pd-C, platinum in the form PtO2, and nickel in the form Ra-Ni.

What is the product formed from hydrogenation reaction of ethene?

Ethene reacts with hydrogen in the presence of a finely divided nickel catalyst at a temperature of about 150°C. Ethane is produced. This is a fairly pointless reaction because ethene is a far more useful compound than ethane.

What does H2 and Pt do?

Alkenes can be reduced to alkanes with H2 in the presence of metal catalysts such as Pt, Pd, Ni or Rh. The two new C-H σ bonds are formed simultaneously from H atoms absorbed into the metal surface. The reaction is stereospecific giving only the syn addition product.

What is catalytic hydrogenation process?

Catalytic hydrogenation is treatment with hydrogen in the presence of a catalyst such as nickel, palladium or platinum. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures. Hydrogenation reduces double and triple bonds in hydrocarbons.

What is meant by catalytic hydrogenation?

(a) Catalytic hydrogenation: Catalytic hydrogenation is a process by which hydrogen gas is passed through vegetable oils in the presence of catalyst like Ni, Pt or Pd to convert them into solid vanaspati ghee.

What is the process of hydrogenation?

1 Hydrogenation. Hydrogenation is a chemical process that adds hydrogen to the unsaturated bonds on the FA chains attached to the TAG backbone. In this way, an unsaturated fat can be turned into a saturated fat and increase its melting point (List and King, 2006).