EASY
8th CBSE
IMPORTANT
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Magnesium is a non-combustible metal.

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Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
Carbon dioxide is an excellent fire extinguisher.
EASY
8th CBSE
IMPORTANT
Calorific value of wood is higher than that of coal.
EASY
8th CBSE
IMPORTANT
A physical process in which a substance react with oxygen to give off heat is called combustion.
EASY
8th CBSE
IMPORTANT
Water is the best extinguisher for fires involving electrical equipment.
EASY
8th CBSE
IMPORTANT
Alcohol, CNG and LPG are inflammable substances.
MEDIUM
8th CBSE
IMPORTANT
Greater the calorific value, better is the fuel.
EASY
8th CBSE
IMPORTANT
Middle zone is the hottest zone of a flame.
EASY
8th CBSE
IMPORTANT
The substance which vaporise during burning, give flame.