Question

Question 7
Oils on treating with hydrogen in presence of palladium or nickel catalyst form fats. This is an example of
(a) Addition reaction
(b) Substitution reaction
(c) Displacement reaction
(d) Oxidation reaction

Answer 1

(a) Addition reaction.
Vegetable or plants oils such as sunflower seed oil or palm oil consist of long-chain hydrocarbon molecules which contain double bonds. On treating with hydrogen in the presence of palladium or nickel catalyst, the hydrogen molecule adds across double bond and ultimately form saturated hydrocarbons, i.e., fats.