16 What is meant by destructive distillation of coal? What are the products obtained from it? Which of these products is used in extraction of metals?
Answers
Answer:
When coal is heated in the absence of air, a number of products are obtained. The main products obtained by the destructive distillation of coal are as follows: (1) Coke (2) Coal tar (3) Coal gas. (1) Coke: contains 98 % carbon. It is porous, tough, black and the purest form of coal.
Answer:
Destructive distillation is a chemical process in which decomposition of unprocessed material is achieved by heating it to a high temperature; the term generally applies to processing of organic material in the absence of air or in the presence of limited amounts of oxygen or other reagents, catalysts, or solvents.
Coke, coal gas, gas carbon, coal tar, ammonia liquor, and coal oil are examples of commercial products historically produced by the destructive distillation of coal.
Coke is used in extraction of metals.