What is shape `-` selective catalysis ?

What are shape selective catalysts?

(a) Describe electrophoresis with the help of a diagram. (b) What is meant by shape selective catalysis ? Give an example of shape selective catalyst.

What is meant by shape-selective catalysis?

What is meant by 'shape-selective catalysis' of reactions ?

(b) What is meant by shape selective catalysis? Give the an example of shape selective catalyst.