HARD
8th CBSE
IMPORTANT
Earn 100

Which part of the candle flame has the highest temperature and why?

Important Questions on Combustion and Flame

HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 2
What is meant by an ideal fuel?
HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 4
How does the burning of wood as a fuel, harmful to us?
HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 5
Why is carbon dioxide considered the best fire extinguisher to put off fires caused by burning of inflammable liquids like petrol or oil?
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 1
A good fuel has high calorific value.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 2
Water is not used to control fires involving electrical appliances.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 3
Wood is a better fuel than LPG.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 4
A good fuel burns neither too fast nor too slowly.
HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 5
Why are gaseous fuels better than the solid and liquid ones?