MEDIUM
8th CBSE
IMPORTANT
Earn 100

A good fuel should have

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Important Questions on Combustion and Flame

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 2
Which of the following fuel has the highest calorific value?
HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 3
Water is used to extinguish fire because it
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 4

In carbon dioxide-based fire extinguishers, carbon dioxide is present in
 

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 5
When a wax candle burns, which part of it catches fire?
HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>Some Questions from NCERT>Q 1
List the conditions under which combustion can take place.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>Some Questions from NCERT>Q 3
Explain how the use of CNG in automobiles has reduced pollution in our cities.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>Some Questions from NCERT>Q 4
Compare LPG and wood as fuels.
HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>Some Questions from NCERT>Q 5
Give reasons for the following statement:

Water is not used to control fires involving electrical equipment.