Combustion
Trending Questions
Q.
Compare LPG and wood as fuels. [6 Marks]
Q.
Air has to be blown around coal for it's easy combustion.
True
False
Q.
What is the source of the sun's heat and light energy?
Explosion
Super fuel
Nuclear reactions
Both explosion and nuclear reaction.
Q.
Identify the appropriate category in which combustion can be categorised.
Physical change
Chemical change
Cyclic change
All the above options are correct.
Q. Incomplete combustion of fuel produces which gas/gases?
- CO
- CO2
- SO2
- All
Q. On complete combustion of methane, we get a material that is
- Acidic
- Neutral
- Basic
- Solid
Q. Combustion is ___ reaction accompanied by light.
- an exothermic
- a substitution
- an endothermic
- an elimination
Q. In __________ combustion, a substance suddenly starts burning without any external cause.
- slow
- non-spontaneous
- spontaneous
- rapid
Q.
The rapid oxidation of a material to give off energy in the form of heat and light is known as -
Condensation
Combustion
Coalition
Corrosion
Q.
During combustion of coal, the supporter of combustion is :-
Nitrogen
Oxygen
Carbon dioxide
Carbon monoxide