Question

Boojho wants to separate the following materials as combustible and non-combustible can you help him

charcoal, chalk, stone, iron rod, copper coin, straw, cardboard, glass, paper and wood

Answer 1

Combustible substances:

• Combustible substances are those that burn or go through the process of combustion.
• Examples: Paper, cloth, cooking gas (LPG), wood, charcoal, etc.

Non-Combustible substances:

• Non-Combustible compounds are those that do not burn upon combustion.
• Examples: Stone, cement, water, iron nails, soil, sand, etc.

Solution:

Combustible substances:

charcoal, straw, cardboard, paper and candlewood.

Non-combustible substances:

chalk, stone, iron rod, copper coin and glass.