Final answer:a) wounds, sterilization agents like ethyl alcohol for b) medical instruments,c)  soaps as disinfectants for cleaning, and other chemicals that don't fit these categories as d) 'None of the above'.Explanation:The categorization of chemicals according to their uses can be determined based on their properties and how they interact with biological systems or materials. In the context provided:For wounds, substances such as antiseptics are used to prevent infection. An example is a weak solution of carbolic acid, which serves as an antiseptic wash.For medical instruments, the requirement is typically for sterilization. Chemicals used for sterilization would need to be more potent than those for cleaning wounds and can include compounds such as ethyl alcohol and quaternary ammonium compounds, with benzalkonium chloride being particularly effective.Soaps and synthetic detergents are used widely for personal hygiene and cleaning purposes. They are classified as disinfectants and are essential for maintaining cleanliness, but they are not as aggressive as sterilants or antiseptics for medical use.Chemicals that do not fit into these categories (a-c) or have other distinct uses would be categorized as None of the above....

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