Question 4 1. Given the following compounds, (12 Marks) (carboxylic acid, alkane, olefine, alcohol, aromatic compound, ketones) a) Order these compounds based on elution sequence from silica gel column chromatography (CC) (first to last). (3 Marks) b) What are the precautions that should be considered when preparing the column? (3Marks) c) How the separated components are collected in CC? (2 Marks) d) How to Check the efficiency of the separation of components after completing CC process? (4 Marks)