Combustion
Combustion: Overview
This topic covers concepts, such as, Combustion, Combustible Substances, Fire & Fuel etc.
Important Questions on Combustion
Write any three scientific factors which supports an object to burn.
If we place a glass on top of a candle the candle will not burn then how does lantern work.
Which of these is not true for combustion?
Why wood burns on heating instead of melting?
What do you understand by the 'flash point' of a fuel?
We can live our life without fire, it is not necessary thing in our life.
A chemical reaction in which substance reacts with carbon dioxide to gives off heat is called combustion.
Which of the following is not required for combustion?
What all are the things required for combustion?
The efficiency of a wood stove is maximum.
Which of the following substance is non-combustible?
The substances which catch fire easily in the presence of oxygen are called
Red phosphorus catches fire at room temperature.
For combustion to occur, the presence of air is necessary.
When water is poured into a paper cup and heated, the paper does not burn.
Give substances which burn (flammable) and which do not (non-flammable).
In each group of words, pick the odd one out. Give the other words a group name which tells what all of them are.
In the liquid state, hydrogen is used as a fuel in _____ (nuclear power plant / spacecraft).
