1Have you seen coal, soot and charcoal? What colour are they, and what are they made of?
2Are smoke, soot and char sources of carbon?
3What are the atomic number and atomic weight of carbon? Is carbon a metal or a non-metal?
4Why is carbon called the basis of the structure of living things?
5Write any four sources where carbon is found as the free element.
6Give three examples each of carbon found as inorganic compounds and as organic compounds.
7What are caramel and sugar charcoal?
8How can we find out whether a substance contains carbon?