WorksheetsCombustion and flame
Total questions: 10
Worksheet time: 5mins
The substances which have very low ignition temperature will
Catch fire easily
Will not catch fire
Catch fire after some time
None of these
Ignition temperature is
Lowest temperature at which a substance catches fire
Highest temperature at which a substance catches fire
Any temperature
1000 C
Combustion is a
Natural process
Chemical process
Physical process
None of these processes
Which one of the following is combustible?
Iron nail
Glass
Stone pieces
Paper
Fuel may be
Solid
Liquid
Gas
All of the three
Combustion is a reaction in which a substance reacts with
hydrogen
Nitrogen
Oxygen
Chlorine
CNG and LPG are the examples of
Solid fuels
Liquid fuels
Gaseous fuels
They are not fuels
Name the most common fuel used in homes.
Petrol
Kerosene
Liquified Petroleum Gas
Wax
Does magnesium produce heat and light during its combustion?
True
False
What is the main chemical component present in striking surface of a matchbox?
Potassium chlorate
Phosphorus
Potassium
Graphite
