Question

what is the role of nickel in the hydrogenation of unsaturated triglyceride?
select the correct answer below:
nickel is a catalyst.
nickel is a source of hydrogen.
nickel is a reactant.
nickel is a product.

Explanation:

In the hydrogenation of unsaturated triglyceride, nickel is used as a catalyst. A catalyst speeds up a chemical reaction without being consumed in the reaction. Hydrogen gas (\(H_2\)) is the source of hydrogen, not nickel. Nickel is not a reactant (the reactants are the unsaturated triglyceride and \(H_2\)) and not a product (the product is a saturated triglyceride).

Answer:

Nickel is a catalyst.