EASY
8th CBSE
IMPORTANT
Earn 100

A liquid fuel used in homes is . (wood / kerosene)

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Important Questions on Combustion and Flame

MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Very Short Answer Type Questions>Q 20
The amount of heat evolved when 1 kg of a fuel is burnt completely is called its _____. (calorific value / ignition temperature)
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Very Short Answer Type Questions>Q 20
 The substances which vaporise during burning, give _____.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Very Short Answer Type Questions>Q 20
Burning of wood and coal causes _____ of air.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Short Answer Type Questions>Q 21
What are fuels? Name any two common fuels.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Short Answer Type Questions>Q 21
State any four characteristics of an ideal fuel (or good fuel).
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Short Answer Type Questions>Q 22
Define the calorific value of a fuel.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Short Answer Type Questions>Q 22
The Calorific value of LPG is 55000KJ/Kg, what does it mean?
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Short Answer Type Questions>Q 23
Can you burn a piece of wood by burning a lighted matchstick near it? Explain.