NEET-XII-Chemistry

05: Surface Chemistry

page 3
Qstn# II-22 Prvs-QstnNext-Qstn
  • #22
    What is shape selective catalysis?
    Ans : A catalytic reaction which depends upon the pore structure of the catalyst and on the size of the reactant and the product molecules is called shape-selective catalysis. For example, catalysis by zeolites is a shape-selective catalysis. The pore size present in the zeolites ranges from 260-740 pm. Thus, molecules having a pore size more than this cannot enter the zeolite and undergo the reaction.