Which of the statements is wrong among the following?
Haber's process of NH3 required iron as catalyst
Friedel-Craft reaction uses anhydrous AlCl3
Hydrogenation of oils uses iron as catalyst
Oxidation of SO2 to SO3 requires V2O5
hydrogenation of oils uses Ni as catalyst
Which among the given processes use iron as a catalyst?
In which process iron is used as a catalyst?