Heterogeneous mixture

• A. A mixture that forms a solution
• B. A mixture in which pure substances are non-uniform distributed throughout
• C. A pure substance
• D. A homogeneous mixture

Answer: (B)

Heterogeneous mixtures have components that are not distributed uniformly, so you can often see different substances or phases in different regions. This means the composition varies from one part of the mixture to another.

The best description is a mixture where the pure substances are not uniformly distributed throughout. In such a mix, you can typically distinguish the separate parts or phases, like a bowl of mixed nuts, a salad, or sandy soil with rocks and organic material.

A mixture that forms a solution describes a homogeneous mix, where the components blend into one uniform substance and you can’t tell the parts apart. A pure substance is a single kind of matter with a fixed composition, not a mix of different substances. A homogeneous mixture is also uniform throughout, which is the opposite of a heterogeneous mixture.