Question

a teacher makes this statement.
\gasoline boils at a relatively low temperature (about 150°c). the kerosene is removed at around 200°c, followed by diesel oil at 300°c and fuel oil at around 370°c.\
what topic is the teacher most likely talking about?

distillation of a
mixture
evaporation of a
mixture
sorting of a pure
substance
filtration of a pure
substance

Explanation:

The teacher is discussing the separation of components (gasoline, kerosene, diesel, fuel oil) from a mixture based on their different boiling points. Distillation is the process of separating mixtures by boiling and condensing, which matches this description. Evaporation is a simpler phase change, and sorting/filtration of pure substances don't fit as these are components of a mixture (crude oil, likely) separated by boiling points.

Answer:

A. distillation of a mixture