Question

Write scientific reason.

Vegetable ghee is formed from the hydrogenation of vegetable oil in presence of nickel catalyst.

Answer 1

1. Vegetable oil contains carbon-carbon multiple bonds while vanaspati ghee contains carbon-carbon single bonds. So, vegetable oil is an unsatured compound while vanaspati ghee is a saturated compound.
2. An unsaturated compound undergoes addition reaction with hydrogen in presence of nickel catalyst to form a saturated compound. This reaction is called hydrogenation.
   Hence, vanaspati ghee is formed from the hydrogenation of vegetable oil in presence of nickel catalyst.