Name the process by which hydrogen is used in the preparation of Vanaspati ghee from vegetable oil by passing hydrogen gas through vegetable oil in presence of nickel as a catalyst.
Hydrogenation is the process by which hydrogen is used in the preparation of Vanaspati ghee from vegetable oil by passing hydrogen gas through the vegetable oil in presence of nickel as a catalyst. The catalyst used in the process can be Nickel, Platinum or Palladium.