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VGS PUBLICATION-BRILLIANT-COMBUSTION , FUELS AND FLAME-EXERCISE
- Give an example of a good fuel. How do you choose that fuel? Explain.
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- It is difficult to burn a heap of green leaves but not a heap of dry l...
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- Where do you find spontaneous combustion and rapid combustion in your ...
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- Why do we keep phosphorus in water?
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- How do you feel about "Fuels have become a part of human life"?
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- Is there any other procedure to prove that oxygen is needed for burnin...
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- The gas needed for combustion among the following is
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- The lowest temperature at which a substance catches fire is called its
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- The unit of calorific value
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- Spirit and petroleum turns into gas at
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- The type of combustion in which material suddenly burns into flames wi...
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- Why does candle give flame when it is burnt but why does coal burn wit...
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- Do all fuels produce same amount of heat when they are burnt?
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- What do we need to burn a material?
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- Have you observed material used to make school bell or bells in temple...
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- Name the three meninges. In which group of animals do you find all of ...
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- What do we need to burn a material?
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- Can we burn a material in the absence of air?
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- Why does a scented stick with burning stub does not catch fire when it...
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- Why does a scented stick with burning stub does not catch fire when it...
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