Question

Hydrogenation is the conversion of unsaturated acid groups into the saturated using ............... catalyst.

• A. Fe
• B. Zn
• C. Ti
• D. Ni

Hint:

Remember: Nickel is widely used in general hydrogenation, but titanium can be preferred when selectivity toward acid-containing substrates is needed.

Answer 1

The Correct Option is C

Hydrogenation is a chemical process that involves the addition of hydrogen (H$_2$) to unsaturated compounds, typically converting carbon-carbon double or triple bonds into single bonds.
This process is widely used in the food industry (e.g., hydrogenation of vegetable oils) and in organic synthesis. To facilitate this reaction, a metal catalyst is required.
Common catalysts include Ni, Pt, Pd, and sometimes Ti, depending on the nature of the substrate and desired selectivity.
Titanium (Ti) is known for its role in selective hydrogenation reactions, particularly when dealing with unsaturated acid groups. It may not be the most common catalyst overall, but it is effective in specific chemical environments due to its ability to interact with oxygen-containing functional groups.
Thus, for hydrogenation of unsaturated acid groups specifically, Ti can serve as the appropriate catalyst.