EASY
8th CBSE
IMPORTANT
Earn 100

State the conditions under which combustion occurs.

Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
Why is more care needed to store kerosene than coal, though both are fuels?
EASY
8th CBSE
IMPORTANT
What problem will arise if a fuel has an ignition temperature lower than the average room temperature? Name the type of combustion that will occur in such a case.
EASY
8th CBSE
IMPORTANT
What is an explosion?
EASY
8th CBSE
IMPORTANT
Why is water not suitable for extinguishing a fire in an electrical appliance?
MEDIUM
8th CBSE
IMPORTANT
Name and give chemical equations to show the products of the combustion reaction in
(a) limited supply of air.
(b) sufficient supply of air.
MEDIUM
8th CBSE
IMPORTANT
List the different methods by which a fire can be extinguished.
EASY
8th CBSE
IMPORTANT
What kind of fires can effectively be put out by water? What kind of fires is it not suitable for? Give reasons for both cases.
EASY
8th CBSE
IMPORTANT
How does carbon dioxide extinguish a fire?