A solution has to do with the presence of a solute where there is a homogenous mixture of different substances in order to get their limit of solubility.
This refers to a method in organic chemistry where there is a sequence of reactions that are used to synthesize molecules.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
Read more about iterations here:
https://brainly.com/question/25754804