Answer:
Potassium Permanganate
Explanation:
A solution is defined as the mixture of two or more substances. The substance that is in big proportion is called as Solvent, the substance that is in low amount is called as Solute.
In an aqueous solution, the solvent is the water. As the aqueous solution is 0.879M KMnO4, the solute is:
Potassium Permanganate
