What are the products of destructive distillation of coal?
Correct answer: D. All of above
- A. Coal tar
- B. Coke
- C. Coal gas
- D. All of above
Explanation
Destructive distillation is a chemical process in which decomposition is achieved by heating to a high temperature; the term generally applies to the processing of organic material in the absence of air or in the presence of limited amounts of oxygen. The process breaks up large molecules. 'Coke, coal gas, gaseous carbon, coal tar, ammonia liquor ,and coal oil' are examples of commercial products historically produced by the destructive distillation of coal.
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About Sublimation and Distillation
Sublimation separates a sublimable solid from non-sublimable impurities by direct conversion between solid and vapour, followed by deposition. Distillation separates liquids through differences in boiling points, including simple, fractional, steam and vacuum distillation, and the choice depends on volatility, miscibility and thermal stability.
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