What is the characteristic of naphtha?

Naphtha is primarily composed of lighter hydrocarbons that can be further processed to produce gasoline. This characteristic distinguishes it from heavier oils and solid substances. When referring to naphtha, it's important to note that it serves as an essential feedstock in the petrochemical industry and is often a crucial component in the production of gasoline blends.

The other options do not accurately describe naphtha. It is not solid at room temperature, as it is a liquid; it is not distilled from natural gas directly, as natural gas consists mostly of methane with very little naphtha; and it is not classified as a heavy oil, as that term typically refers to thicker, heavier fractions like fuel oils. Thus, the defining property of naphtha’s composition aligns perfectly with being primarily composed of gasoline.