Question

Which transition metal is used as a catalyst in the manufacture of vegetable ghee?

Options

• Fe

• Cr

• Co

• Ni

Answer 1

Ni

Explanation:

Nickel (Ni) is used as a catalyst in the hydrogenation of vegetable oils to form vegetable ghee (vanaspati ghee). In this process, unsaturated oils are converted into saturated fats using hydrogen gas in the presence of a finely divided nickel catalyst. This is a common industrial use of transition metals.