What is Ziegler-Natta catalyst ?

Ziegler-Natta catalyst is

What are the oxidation states Al and Ti in the Zeigler - Natta catalyst ?

Match the entries of Column-I with appropriate entries of Column-II {:("COLUMN - I ","COLUMN - II "),("A) Conversion of proteins into amino acids ","p) Shape selective catalysts "),("B) Conversion of Alcohols into gasoline ","q) Enzymatic catalysis "),("C) Polymerisation of ethylene ","r) Zeigler-Natta catalyst "),("D) Manufacture of margarine ","s) Heterogeneous catalysis "):}

What is negative catalyst ? Give example.

What is the role of a catalyst in a reversible reaction?

In which of these processes platinum is used as a catalyst ?

In which of these processes platinum is used as a catalyst ?

What is Welkinson catalyst ?

Which of the following reactions requires high temperature and catalyst?