Which one of the following is not the example of homogeneous catalysis :-

Which one of the following is not an example of homogeneous catalysis? (A)Formation of SO_(3) in the chamber process (B) Formation of SO_(3) in the contact process Hydrolysis of an ester in the presence of acid (D) Decomposition of KClO_(3) in the presence of MnO_(2)

The example of homogeneous catalysis is

The example of homogeneous catalysis is

Which one of the following is an example of homogeneous catalysis ?

Which one of the followings is/are an example of homogeneous catalysis?