The type of combustion in which a material suddenly bursts into flames, without the application of any apparent cause is called
Rapid combustion
Burning
Spontaneous combustion
Slow combustion
Which of the following helps to putting out the fire in soda-acid fire extinguisher?
CO2
CO2+H2O
H2O
H2+H2O
In which reaction, a large amount of gas is formed?
Combustion
Explosion
Oxidation
Which of the following is a noncombustible substance?
Coke
Diamond
Coal
Wood
Which of the following poisonous gas is produced as a result of incomplete combustion?
Carbon monoxide
Carbon dioxide
Oxygen
Hydrogen
Which of the following is the rise in temperature of the atmosphere of the earth.
Acid rain
Green house effect
Global warming
Photosynthesis
The lowest temperature at which a substance catches fire is called its
Inversion temperature
Ignition temperature
Boiling temperature
Freezing temperature
The heat supplied to the paper cup is transferred to water by
Conduction
Convection
Insulation
Which are known as combustible substances?
Reactants
Fuels
Catalysts
Products
A chemical process in which a substance reacts with oxygen to give off heat is called
Addition
Substitution
Thermal cracking
