Final answer:
Brady's reagent, Tollen's reagent, and Fehling's solution do not have official IUPAC names as they are mixtures. Their components, such as 2,4-dinitrophenylhydrazine for Brady's reagent, silver nitrate for Tollen's reagent, and copper(II) sulfate for Fehling's solution, have IUPAC names.
Step-by-step explanation:
The student's question pertains to the IUPAC names of certain reagents known in chemistry as Brady's reagent, Tollen's reagent, and Fehling's solution. However, these reagents are commonly known by their trivial names, and thus, they do not have official IUPAC names. Instead, their composition can be described using IUPAC nomenclature for the chemicals involved in their preparation.
For example:
- Brady's reagent generally contains 2,4-dinitrophenylhydrazine, which can be described by IUPAC as 2,4-dinitrophenylhydrazine.
- Tollens' reagent is known for its silver mirror test and is prepared with silver nitrate (AgNO3) and aqueous ammonia.
- Fehling's solution is a mixture of copper(II) sulfate (CuSO4), sodium potassium tartrate, and sodium hydroxide (NaOH).
IUPAC names for mixtures are not typically provided, as the IUPAC system focuses on individual compounds.