Question

How is charcoal prepared?

• A. When wood is heated with cow dung and co₂ then the residue is charcoal.
• B. When wood is boiled in water then after evaporation the residue is charcoal.
• C. When wood is burnt in limited supply of oxygen & water until volatile materials are removed, residue is charcoal.
• D. All of these.

Answer 1

The correct option is C

When wood is burnt in limited supply of oxygen & water until volatile materials are removed, residue is charcoal.

Charcoal is usually produced by slow pyrolysis i.e., the heating of wood or other substances in limited supply/absence of oxygen.