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Madhu wants to avoid automobiles and sta...

Madhu wants to avoid automobiles and started going to school by bicycle. Do you appreciate his decision?

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NCERT TELUGU-COMBUSTION: FUELS AND FLAME-EXERCISE
  1. Draw the diagram of candle flame and label all the zones.

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  2. How do you organize your daily works with fuels to conserve bio-divers...

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  3. Madhu wants to avoid automobiles and started going to school by bicycl...

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  4. How do you feel about "Fuels have become a part of human life"?

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  5. Why do some materials burn and some do not?

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  6. Why do some materials which do nt burn at normal temperature burn at h...

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  7. If you lift the glass tumbler (which is placed over a burning candle) ...

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  8. How do you say that the gas released in the experiment is oxygen?

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  9. Can we replace potassium permanganate (KMnO4) with any other substance...

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  10. Is there any other procedure to prove that oxygen is needed for burnin...

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  11. Why do we keep phosphorus in water?

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  12. Why do kerosene stoves and bunsen burners have small holes in them?

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  13. It is hard to ignite match stick in rainy days. Why?

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  14. A wax candle burns with a yellow flame. The domestic gas burns when li...

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  15. Why does candle give flame when it is burnt but why does coal burn wit...

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  16. Do all fuels produce same amount of heat when they are burnt?

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  17. What do we need to burn a material?

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  18. When you burn a piece of wood different changes take place. Analyse th...

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  19. What will you prove by this experiment?

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  20. Can we burn a material in the absence of air?

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