EASY
8th CBSE
IMPORTANT
Earn 100

What are the chemicals required in a fire extinguisher?

Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 8
Why is water not used to put out fires caused by petroleum products?
EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 1
State one disadvantage of incomplete combustion of fuel.
EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 2
What name is given to a region of burning gases?
MEDIUM
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 3
In a candle which of these catches fire - solid wax/molten wax/wax vapour?
EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 4
Name the zones of a candle which are visible to the unaided eye.
EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 5
Which is the coolest part of a candle flame?
EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 6
What is responsible for the emission of yellow light from a candle flame?
EASY
8th CBSE
IMPORTANT
Learning Elementary Science with Online Support>Chapter 6 - Combustion and Flame>ORAL QUESTIONS>Q 7
Why is the non-luminous zone of a candle flame hottest?