Answer: Solvent
Step-by-step explanation:
Binary Solution is a homogeneous mixture of two components called as solute and solvent. Solute is the component which is present in smaller proportion and is solid for solid in liquid solution and solvent is the component which is present in larger proportion and is liquid for solid in liquid solution.
When 1 g of sodium chloride is dissolved in 100 g of water, it results into formation of binary solution where sodium chloride acts as solute and water acts as solvent.