Q38 of 87 Page 106

What is the difference between the burning of a candle and the burning of a fuel like coal.

Substances which vapourise during burning, produce flames, such as wax in the candle, Kerosene.

Substances which do not vapourise during burning, do not produce flames. Example- coal and charcoal.

More from this chapter

All 87 →
37

Explain why, we are advised not to sleep in a room having closed doors and windows, with a coal fire burning inside.

 38

What is a flame? What type of substance ,on burning, give a flame?

 39

How does pouring water extinguished a fire.

 40

Explain how, carbon dioxide is able to control fires?