Question

Which acts as poison for Pd-charcoal in Lindlar's catalyst?

• A. $BaS{O}_4$
• B. Quinoline
• C. Both $A$ and $B$
• D. None of the above

Answer 1

The correct option is D None of the above

A Lindlar catalyst is a heterogeneous catalyst which consists of palladium deposited on calcium carbonate which is then poisoned with various forms of lead or sulphur not with $BaS{O}_4$ and quiniline. It is used for the hydrogenation of alkynes to alkenes.