MEDIUM
8th CBSE
IMPORTANT
Earn 100

Differentiate between a luminous and a non-luminous zone of a candle flame.

Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
What do you mean by the ignition temperature of a substance?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
How does combustion of fuels cause global warming?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
What is SPM? Explain.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
What is greenhouse effect? Explain.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
What is unleaded petrol? What is its advantage.
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
What are secondary fuels? Give examples.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q D
Why the lowermost zone of flame is called dark zone?
HARD
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q E
How are fuels classified on the basis of their physical state? Give at least two examples of each.