Question

What type of a substance is steel?

• A. A solid-liquid heterogeneous mixture
• B. A solid-liquid homogeneous mixture
• C. A solid-solid homogeneous mixture
• D. A pure substance

Answer 1

The correct option is C

A solid-solid homogeneous mixture

Steel is the most common metal alloy in the world. In its simplest form, it consists of iron and varying amounts of carbon. It is a homogeneous mixture of solids as it is uniform in its composition.