EASY
8th CBSE
IMPORTANT
Earn 100

The hottest part of the candle flame is the  zone. (middle, outer, innermost)

50% studentsanswered this correctly

Important Questions on Combustion and Flame

MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q B
S.I. unit of calorific value is _____. 
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q B
Good fuel requires _____ ignition temperature.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q C
Which gas is obtained on complete and incomplete combustion of fuel?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q C
White phosphorus on exposure to air indicates which type of combustion?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q C
Name the main constituents of gel candles.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q C
Which substance has highest calorific value?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q C
Name the compounds that causes acid rain.
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 5 - Combustion and Flame>EXERCISES>Q C
Name two excellent fuels used most commonly in our day-to-day life