MEDIUM
8th CBSE
IMPORTANT
Earn 100

What is meant by 'combustion'? Explain with an example.

Important Questions on Combustion and Flame

MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Long Answer Type Questions>Q 52
What are the conditions necessary for combustion to take place?
HARD
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Long Answer Type Questions>Q 53
Label the diagram and explain the different zones in a candle flame.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Long Answer Type Questions>Q 53
What makes the middle zone of a candle flame luminous (or light-giving)?
HARD
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Long Answer Type Questions>Q 54
What is global warming? Name the gas whose increasing percentage in the air is leading to global warming. State a harmful effect which can be caused by global warming.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Long Answer Type Questions>Q 55
Explain how, burning of fuels such as coal, petrol and diesel leads to acid rain. How is acid rain harmful?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Multiple Choice Questions (MCQs)>Q 56
Which of the following substances has the lowest ignition temperature?
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Multiple Choice Questions (MCQs)>Q 57
One of the following is not a combustible substance. This one is:
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 6 - Combustion and Flame>Multiple Choice Questions (MCQs)>Q 58
Which of the following is not used in making matchsticks these days?