EASY
8th Jammu and Kashmir Board
IMPORTANT
Earn 100

What is combustion? Name some combustible substances.

Important Questions on Combustion and Flame

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercise 1>Q 2
What are the different types of combustion? Give examples.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercise 1>Q 3
What is Ignition temperature?
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercises>Q 1
List conditions under which combustion can take place.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercises>Q 2
Burning of wood and coal causes _____ of air. (purification/ pollution)
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercises>Q 2
A liquid fuel used in home is _____. (glycerine / kerosene)
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercises>Q 2
Fuel must be heated to its _____ before it starts burning.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercises>Q 2
Fire produced by oil cannot be controlled by _____. (sand/water)
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 7 - Combustion and Flame>Exercises>Q 3
Explain how the use of CNG in automobiles has reduced pollution in our cities.