Question

Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of

Options

•  Addition reaction

• Substitution reaction

• Displacement reaction

• Oxidation reaction

Answer 1

 Addition reaction

Explanation - 

Unsaturated hydrocarbons add hydrogen in the presence of catalysts such as palladium or nickel to give saturated hydrocarbons. This addition reaction is commonly used in the hydrogenation of vegetable oils using a nickel catalyst. Vegetable oils generally have long unsaturated carbon chains while animal fats have saturated carbon chains.