Cresols yield aromatic hydrocarbons on hydrogenolysis over which catalyst?
A. Nickel
B. Zinc
C. Cadmium
D. All of the mentioned
This question was addressed to me during an interview.
The above asked question is from Hydrogenolysis Reactions topic in chapter Hydrogenation of Unit Processes
Correct answer is A. Nickel
The explanation is: Phenol, polyphenols, and cresols yield aromatic hydrocarbons on hydrogenolysis over nickel catalysts at temperatures above 250°C.