Q2(a) Figure Q2 (a) shows a double-stage hydrocracking process. Makeup Hydrogen Makeup Hydrogen Product Gas Recycled Gas Fresh Feed Recycled Gas Light Naphtha Heavy Naphtha Kerosene Diesel Recycled Bottoms First Stage Product First Stage Reactor Separators Fractionator Second Stage Separators Reactor Figure Q2(a) Double-stage hydrocracking process Page 1 of 2 (i) Outline the functions of the first stage and second stage reactor with the reaction equations. (4 marks) (ii) Justify the selection of catalysts based on the types of feedstocks. (2 marks)