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Why is helium used in diving apparatus ?...

Why is helium used in diving apparatus ?

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The correct Answer is:
Because of its low solubility (as compared to `N_(2)`) in blood, a mixture of oxygen and helium is used in diving apparatus used by deep sea divers.
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Assertion (A): Helium used in diving apparatus. Reason (R): Helium is very less soluble in blood.

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RESONANCE-P BLOCK ELEMENTS-B.L.E
  1. (a)Give reasons for the following : Nitric oxide becomes brown when re...

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  2. Why is ICI more reactive than I2?

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  3. Why is helium used in diving apparatus ?

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  4. With which neutral molecule is ClO^(-) isoelectronic ? Is this molecul...

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  5. Why has it been difficult to study the chemistry of radon ?

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  6. How are XeO(3) and XeOF(4) prepared ?

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  7. List the uses of neon and argon gases.

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  8. Explain why fluorine forms only one oxoacid, HOF.

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  9. Explain why inspite of nearly the same electronegativity, nitrogen for...

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  10. Write two uses of ClO2.

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  11. Why are halogens coloured?

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  12. How can you prepare Cl2 from HCl and HCI from Cl2? Write reactions onl...

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  13. How are xenon fluorides XeF(2),XeF(4) and XeF(6) obtained?

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  14. Which one of the following does not exist ? (i) XeOF(4) (ii) NeF(2) ...

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  15. Why do noble gases have comparatively large atomic sizes?

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  16. Considering the parameters such as bond dissociation enthalpy, electro...

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  17. Write the reaction of F(2) and Cl(2) with water.

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  18. Name two poisonous gases which can be prepared from chlorine gas.

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  19. Give the formula and describe the structure of a noble gas species whi...

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  20. Arrange the following in the order of property indicated for each set ...

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