Question

differentiate.
1. Combustible and non combustible substance.
2. Complete and incomplete combustion.
High efficiency and low efficiency fuels.
Burning with flame and burning without flame.
Blue flame and a candle flame.​

Answer 1

Answer:

1. Combustible substances: Those substances which undergo combustion or burn are called combustible substances.

For example: Paper, cloth, cooking gas (LPG), CNG, Kerosene oil, wood, charcoal, etc.

Non-Combustible substances: Those substances which do not undergo combustion are called combustible substances.

For example: Stone, cement, bricks, soil, sand, water, iron nails, etc.

Answer 2

Answer:

1. Combustible is a substance which supports burning of another substance whereas non combustible is a substance which does not support burning of another substance
2. The process during combustion of a substance is completed is known as complete combustion whereas the incomplete process of combustion is known as incomplete combustion.
3. The fuel which carry a power of high efficiency is called high efficiency fuel whereas the fuel which carry a low efficiency of fuel is called low efficiency fuel.
4. Some burning of substance carry a flame during burning they are called burning with flame whereas some does not carry flame during burning are called without flame
5. Some substance which when burned releases blue flame whereas some burning releases yellow flame it is called candle flame.

Explanation:

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