EASY
8th CBSE
IMPORTANT
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Fire extinguisher produces gas.

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Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
Non-Luminous flame is called _____ flame.
EASY
8th CBSE
IMPORTANT

Carbon dioxide is the product of complete combustion of fuel.

EASY
8th CBSE
IMPORTANT

Petroleum products are generally compounds of carbon and hydrogen.

EASY
8th CBSE
IMPORTANT

Fire can occur in the absence of combustible substance.

MEDIUM
8th CBSE
IMPORTANT

Ignition temperature of white phosphorus is 30°C.

EASY
8th CBSE
IMPORTANT
Black zone of the flame is the hottest part of the flame.
EASY
8th CBSE
IMPORTANT
Write the full form of CNG.
MEDIUM
8th CBSE
IMPORTANT
When crackers burst, which type of sound is produced?