Which of the following catalysts is used in the decomposition of $KClO_3$?

What do you understand by shape selective catalysis? Why are zeolites good shape selective catalysts?

The number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ..........
$A.$ The catalyst is diffused over the surface of reactants.
$B.$ Reactants are adsorbed on the surface of the catalyst.
$C.$ Occurrence of chemical reaction on the catalyst's surface through formation of an intermediate.
$D.$ It is a combination of intermediate compound formation theory and the old adsorption theory.
$E.$ It explains the action of the catalyst as well as those of catalytic promoters and poisons.

$A$ catalyst is used to

Which of the following statements is incorrect regarding a catalyst?

Which of the following is an example of homogeneous catalysis?