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FILL IN THE BLANKS : When coal is heated...

FILL IN THE BLANKS : When coal is heated in the absence of air we get________ and ________

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Can we burn a material in the absence of air?

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FILL IN THE BLANKS : ________ is also known as soft coal.

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A process in which the ore is strongly heated in the absence of air or oxygen is

FILL IN THE BLANK The process of exhaling air is called…..

Fill the blanks in the table

NCERT TELUGU-COMBUSTION: FUELS AND FLAME-EXERCISE
  1. Fill in the Blanks:Vehicles emit…………..gases.

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  2. Fill in the Blanks:………………is necessary for combustion.

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  3. FILL IN THE BLANKS : When coal is heated in the absence of air we get ...

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  4. Fill in the blanks. ……was used in manufacture of steel.

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  5. Coal tar is used in manufacture of

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  6. Fill in the Blanks:Petrol is obtained from petroleum by……………….

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  7. Fill in the Blanks:Solar energy is………………

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  8. Fill in the Blanks:examples Renewable sources are………………..

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  9. Write an activity to prove that oxygen helps in burning.

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  10. "Is combustion possible without the supply of oxygen? Discuss with you...

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  11. Explain giving reasons: In which of the following situations water wil...

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  12. List the ways adopted by fire fighters to combat fires.

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  13. Draw the diagram of candle flame and label all the zones.

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  14. Which one of the following is non combustible

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  15. Name the fuel that is commonly used by most of the people

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  16. Which of the following is used as a rocket fuel?

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  17. The substance that catches fire at room temperature by heat

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  18. Can we separate alcohol dissolved in water by using a separating funne...

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  19. Which one of the following is suggested for vehicles,.

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  20. Removing the unburnt materials from a heap of paper which caught fire

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