What type of solvents, when mixed with water, create a homogenous solution?

• A. Non-polar solvents
• B. Water insoluble liquids
• C. Water soluble liquids such as polar solvents
• D. Gaseous compounds

Answer: (C)

When mixing solvents with water to form a homogeneous solution, the key factor is the polarity of the substances involved. Water is a polar solvent, meaning it has distinct positive and negative ends due to its molecular structure. When a solvent is also polar, it can interact favorably with water molecules, allowing for a uniform mixture without separation.

Water-soluble liquids, which are typically polar solvents, will disperse evenly in water, resulting in a solution where the components are uniformly distributed at the molecular level. This homogeneity occurs due to hydrogen bonding and other polar interactions that facilitate the mixing process.

In contrast, non-polar solvents do not mix well with water because their lack of polarity prevents effective interactions with the polar water molecules. Water insoluble liquids show the same behavior, remaining separate from the water phase. Gaseous compounds may dissolve in water under certain conditions, but they typically do not form homogeneous solutions in the same way that polar solvents do. Thus, water-soluble liquids such as polar solvents are the correct choice for creating a homogeneous solution when mixed with water.