What is the most important chapter of a doctoral dissertation?

A doctoral dissertation is important aspect of PHD degree and a student cannot have its degree unless they are done with the dissertation. The chapters of the chapters of the doctoral dissertation are quite complex to write because of the enhanced academic level. That is the reason why students take immense knowledge from several research reports and they start the writing from the scratch. Literature review is usually considered to be the toughest chapter of all times because of the fact that t involves immense research and that is the reason why instructors emphasize on this chapter a lot. Referencing should be appropriate too and new references should be used so that the instructor easily evaluates the research paper. Usually, it can be said that the literature review should be comprised of at least 35% of the entire paper and critical analysis should be done so that the instructor can give appropriate marks.