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Chemistry in Everyday Life. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceChemistry in Everyday Life.7 Marks
Question
What is known as destructive distillation? Write about the products obtained from fractional distillation of petroleum.
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Answer

Coal when heated in the absence of air does not bum but produces many by-products. This process of heating coal in the absence of air is called destructive distillation of coal.
Products obtained from petroleum:
  1. Liquefied Petroleum Gas or LPG
  2. Diesel and petrol
  3. Kerosene
  4. Lubricating oil
  5. Paraffin
  6. Bitumen or asphalt
  7. Refinery Gas
  8. Naphtha
  9. Fuel Oil
  10. Chemicals
  11. Jet fuel
  12. Waxes
  13. Polishes

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