MEDIUM
8th CBSE
IMPORTANT
Earn 100

A blue flame is a luminous flame.

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Important Questions on Combustion and Fossil Fuels

MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>Revise and recall>Q 4
Complete combustion occurs in the outer zone of a flame.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 1
Which of the following can be used to extinguish fire involving petroleum products?
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 2
A luminous flame is _____ in colour.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 3
Identify the characteristics of a good fuel from the following:
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 4
Identify the petroleum product that is used in ointments.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 5
Which of the following products is not obtained during complete combustion?
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 1
Natural gas is an inexhaustible natural resource.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 2
Peat is considered as the best variety of coal.