The substances which have very low ignition temperature will
catch fire easily
will not catch fire
catch fire after some time
none of the above
A.
catch fire easily
Burning of fossil fuels causes pollution. Comment.
Which of the following has the lowest ignition temperature ?
petrol
kerosene
coal
LPG
Coal burns with
flame
only glow
both flame and glow
none of the above
At airports and petrol pumps hydrocarbon fire extinguishers are used, not the soda-acid fire extinguisher. Why ?