MEDIUM
8th CBSE
IMPORTANT
Earn 100

Look at the picture given below. It shows different colours of the flame with change in oxygen supply. Number them in correct order from 1 to 4 according to increase in oxygen supply.
C:\Users\pk\Desktop\Colour of flame.PNG

Important Questions on Combustion and Fossil Fuels

EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 5 - Combustion and Fossil Fuels>Let's Remember>Q I
Combustion is only possible if the substance is combustible.
EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 5 - Combustion and Fossil Fuels>Let's Remember>Q I
Water should be poured over burning petrol, kerosene or diesel.
EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 5 - Combustion and Fossil Fuels>Exercises>Q A
Which of these is necessary for combustion?
MEDIUM
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 5 - Combustion and Fossil Fuels>Exercises>Q A
A non-luminous flame appears
EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 5 - Combustion and Fossil Fuels>Exercises>Q B
Write one word for a region where the combustion of fuel takes place. [flame / ocean]
EASY
8th CBSE
IMPORTANT
OXFORD New Science In Everyday Life 8>Chapter 5 - Combustion and Fossil Fuels>Exercises>Q B
Write one word for the substances that produce heat and light energy on burning. (Fuels / Ignition temperature)