In foam type fire extinguisher, which of the following products are formed?
2Al(OH)3 + 6H2O + 3NaSO4
2Al(OH)3 + 6CO + 3NaSO4
2Al(OH)3 + 6O2 + 3Na2SO4
2Al(OH)3 + 6CO2 + 3Na2S04
The substances which have very low ignition temperature and can easily catch fire with a flame are called
Conducting substances
Flammable substances
Inflammable substances
Non conducting substances
Which of the following is an ideal fuel?
Coal
LPG
Petrol
None of these
The substances which vaporize during burning gives
Heat
Flame
Hydrogen
Carbon
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
Certain substances burn rapidly and produces heat and light. Such combustion is known as
Good combustion
Complete combustion
Which of the following poisonous gas is produced as a result of incomplete combustion?
Carbon monoxide
Carbon dioxide
Oxygen
Which are known as combustible substances?
Reactants
Fuels
Catalysts
Products
Which of the following is a noncombustible substance?
Coke
Diamond
Wood
Which of the following helps to putting out the fire in soda-acid fire extinguisher?
CO2
CO2+H2O
H2O
H2+H2O
