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ICSE Class 8 Chemistry Question 8 of 17

Carbon & Its Compounds — Question 12

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12
Question

Question 6(c)

How is wood charcoal made locally? What other substances are formed in the process?

Answer

Locally, wood charcoal is prepared by the following steps:

  1. Logs of wood are piled one above the other with a gap in the centre of the pile.
  2. The pile is covered with wet clay to prevent the entry of air.
  3. A few holes are left at the bottom of the pile.
  4. The wood is set on fire.
  5. When the fire dies out a greyish-black, brittle, porous solid is left behind which is wood charcoal.

The other substances formed are wood tar, wood gas, pyroligneous acid.