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What are the conditions necessary for co...

What are the conditions necessary for combustion to take place ?

A

Ignition temperature

B

Combustible substance

C

Supporter of combustion

D

All of these

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The correct Answer is:
D
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  1. Why is the use of water avoided to extinguisher electrical fires?

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  2. How can we extinguish a fire?

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  3. Which of these is an example of incomplete combustion?

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  4. In which reaction a combustible substance reacts with oxygen to give c...

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  5. Why is sodium metal kept under kerosene oil ?

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  6. Which of these is an example of rapid combustion?

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  7. Which of the following is a supporter of combustion?

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  8. Which of these is an inflammable substance?

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  9. Which of these is an example of a non-combustible substance?

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  10. What type of change is combustion?

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  11. Which of these fuels has the highest calorific value?

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  12. Which of these things would have the lowest ignition temperature?

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  13. The SI unit of calorific value is joules per .

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  14. In which zone of a candle flame does no combustion take place?

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  15. Which of these fire extinguishing methods can be used to put out an oi...

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  16. Which gas is produced due to incomplete combustion of fuel?

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  17. Which of the substances undergoes spontaneous combustion in the presen...

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  18. What are the conditions necessary for combustion to take place ?

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  19. Which of these is a non-combustible substance?

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  20. Unburnt carbon particles of the fuel cause

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