Question: Which of the following is Lindlar catalyst ?
Zinc chloride and HCl
Cold dilute solution of $\mathrm{KMnO}_{4}$
Sodium and Liquid $\mathrm{NH}_{3}$
Partially deactivated palladised charcoal
Correct Option: , 4
Solution:
Partially deactivated palladised charcoal $\left(\mathrm{H}_{2} / \mathrm{pd} / \mathrm{CaCO}_{3}\right)$ is lindlar catalyst.
