1. Discuss why the bromo-benzene was added in small amounts over a period of 15 minutes and not all at one in the experiment nitration of the bromo-benzene?
2. Explain why is 4-nitrobromobenzene the predominant product vs. the 2-nitro product in the experiment of nitration of bromo-benzene?
3. Determine the major component of the mother liquor obtained in the re-crystallization step? Discuss why didn't this component crystallize along with the 4-nitrobromobenzene?