EASY
8th CBSE
IMPORTANT
Earn 100

There is no flame produced during spontaneous combustion.

50% studentsanswered this correctly

Important Questions on Combustion and Fossil Fuels

EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 5
Inflammable substances have a very low ignition temperature.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 1
Answer the following in one word:

An example of a combustible substance.

MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 2
Answer the following in one word:

The type of combustion that takes place in a sufficient amount of oxygen.

MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 3
Answer the following in one word:

The region in which the combustion of fuels takes place.

MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 4
Answer the following in one word:

The innermost and coolest part of the flame.

MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 5
Answer the following in one word:

The unit for calorific value.

HARD
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 1
Just by observation, how can you differentiate between incomplete and complete combustion?
EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 5 - Combustion and Fossil Fuels>EXERCISE>Q 2
What are the conditions required for combustion?