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Explain how CO2 is able to control fires...

Explain how C`O_2` is able to control fires.

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Explain how the hybrid structure is related to the structures of each of the following pairs of contributing resonance structures? (a) overset(oplus)(C )H_(2) underset((i))- underset(..)overset(Θ)C H_(2) harr CH_(2) underset((ii))= CH_(2) (b) H_(2)C underset((iii))= overset(..)(O): harr H_(2)C underset((iv))- underset(..)overset(..)O:^(-) (c ) R_(2) overset(+)C- underset(underset(underset((v))(R ))(|))C= overset(..)O: harr underset((vi))(R_(2)C = underset(underset(R )(|))(C) - overset(..)O:^(+)) (d) underset((VII)) (R-C^(+) = overset(..)(O): )harr underset((VIII))(R-C-= O:^(+)) (e ) underset((IX))(R- underset(underset( :O: )(||))(C)- underset(..)overset(..)OH) harr underset((IX))(R- underset(underset( :underset(..)(O): )(|))(C) - ""^(oplus")underset(..)OH)

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Fill in the Blanks:Oil fires cannot be controlled by………………….

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VGS PUBLICATION-BRILLIANT-COMBUSTION , FUELS AND FLAME-EXERCISE
  1. Which zone of a flame does a goldsmith use for melting gold and silver...

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  2. In an experiment 4.5kg of a fuel was completely burnt. The heat produc...

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  3. Explain how CO2 is able to control fires.

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  4. Give reasons. Paper by itself catches fire easily whereas a piece of p...

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  5. Can the process of rusting be called combustion ? Discuss.

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  6. How do you appreciate use of fossil fuels in daily life?

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  7. Name the products formed when a candle burns in the air.

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  8. Give four examples of non-combustible materials.

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  9. Why is water not suitable as fire extinguisher for fires involving oil...

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  10. Which zone of a flame does a goldsmith use for melting gold and silver...

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  11. Which type of substances give flame?

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  12. What would happen if oxygen stops to support combustion? Make a guess....

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  13. Let us assume that you are on the moon. If you try to focus sunlight o...

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

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  15. Water is not used to control fires involving electrical equipment.Why?

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  16. Give reasons. Paper by itself catches fire easily whereas a piece of p...

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  17. Explain how CO2 is able to control fires.

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  18. What are the three essential requirements for producing fire?

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  19. Why "CNG" being used as a fuel for vehicles?

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  20. Whether rusting is combustion reaction or not ? Why

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