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Describe how a matchstick is lighted....

Describe how a matchstick is lighted.

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Since the ignition temperature of a matchstick is much higher than the room temperature, it does not catch fire and burn on its own at room temperature. It needs to be rubbed against the rough surface provided on the side of the matchbox. The heat generated by friction raises the temperature of the chemicals present on the head of the matchstick to their ignition temperature and the matchstick starts burning.
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S CHAND IIT JEE FOUNDATION-COMBUSTION AND FLAME -Self Assessment Sheet-17(Fill in the blanks)
  1. Burning of wood and coal causes of air.

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  2. An important liquid fuel, used in homes is .

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  3. The rise in temperature of the environment of the earth is called .

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  4. What type of combustion is represented by: burning of white phosphor...

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  5. What type of combustion is represented by : burning of LPG in a gas ...

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  6. What type of combustion is represented by : ignition of a cracker ?

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  7. Make a labelled diagram of a candle flame.

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  8. List conditions under which combustion can take place.

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  9. Define ignition temperature.

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  10. What are the main constituents of biogas and kitchen gas (LPG)?

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  11. What is LPG? Mention its main component. Why is a smelling agent added...

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  12. "The calorific value of LPG is 55000 kj/kg". What does it mean ?

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  13. Which of the following fuels has the lowest calorific value ? Diesel...

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  14. Which of the following fuels has the highest calorific value? Wood,...

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  15. Explain why, fire caused by electricity should not be extinguished by ...

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  16. How is the fire produced by burning oil (or petrol) extinguished?

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  17. A durm full of kerosene catches fire. What is the simplest way to put ...

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  18. Why is kerosene used in stoves and not petrol?

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  19. Describe how a matchstick is lighted.

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  20. Combustion is the process of

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