Chapter 8, Problem 26P

Interpretation Introduction

Interpretation:

The reason due to which compound A undergoes catalytic hydrogenation happens much faster than does compound B, is to be explained.

Concept introduction:

On catalytic hydrogenation, alkenes get converted to the corresponding alkanes with the same number of carbon atoms.

In hydrogenation reaction, one hydrogen atom gets attached to each of the double bonded carbon atoms.

To accelerate the rate of hydrogenation, the metal catalyst provides an alternative pathway involving low activation energy steps.

The alkene is less hindered and better able to contact the catalyst surface gives a major product.