NEETChemistryHydrocarbons
In the reduction of alkynes to alkenes using Lindlar's catalyst, what is the role of quinoline?
Options
- AIt is a reactant.
- BIt is a catalyst.
- CIt is a poison to deactivate the catalyst.
- DIt is a solvent.
Correct answer
C. It is a poison to deactivate the catalyst.
Step-by-step solution
Quinoline is used as a poison to partially deactivate the catalyst (palladised charcoal) in Lindlar's catalyst to ensure selective hydrogenation.