Question

What is the residue left in this process? Give one main use of this residue​

Answer 1

Answer:

coal is left

Explanation:

In chemistry residue is whatever remains or acts as a contaminant after a given class of events.Residue may be the material remaining after a process of preparation, separation, or purification, such as distillation, evaporation, or filtration. It may also denote the undesired by-products of a chemical reaction.

Answer 2

Explanation:

Destructive distillation is a process by which organic substances such as wood, coal and oil shale are decomposed by heat in the absence of air and distilled to produce useful products such as coke, charcoal, oils and gases