Q. Which of the following types of metals form the most efficient catalysts?

A) Alkali metals
B) Alkaline earth metals
C) Transition metals
D) All of these
Explanation

(c)
Many of the $d$-block (transition) elements and their compounds act as catalyst . Catalytic property is probably due to the utilisation of ($n - 1$) $d$-orbitals or formation of interstitial compounds.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.