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Which inert gas has abnormal behaviour o...

Which inert gas has abnormal behaviour on liquefaction ?

A

Xe

B

He

C

Ar

D

Kr

Text Solution

Verified by Experts

The correct Answer is:
B
Gaseous He on cooling below 4K changes to liquid He . Which on further cooling to 2K changes to an abnormal liquid, showing abnormal properties.
(1) High thermal conductivity
(2) Very low viscosity (3) Liquid He behaves like a gas, known as super– fluid.
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ERRORLESS-THE P -BLOCK ELEMENTS (NITROGEN, OXYGEN, HALOGEN AND NOBLE FAMILY)-NCERT BASED QUESTIONS (Noble Gases)
  1. Which of the following gases exist more abundantly in nature than the ...

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  3. Which of the noble gases is the least polarized?

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  4. The forces acting between noble gas atoms are

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  5. Which of the following is most polarised

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  6. Which inert gas has abnormal behaviour on liquefaction ?

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  7. Helium is used in balloons in place of hydrogen because it is

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  8. Molecules of a noble gas do not posses vibrational energy because ...

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  9. Helium is added to the oxygen supply used by deep sea divers because

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  10. Who among the following firest prepared a stable compound of noble g...

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  11. Which of the following gas mixture is used by the divers inside the se...

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  12. From the knowledge of the position of radium in the periodic table, wh...

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  13. Which of the following is not obtained by direct reaction of constitue...

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  14. XeF(4) on partial hydrolysis produces

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  15. XeF(6) on hydrolysis gives

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  16. Perxenate ion is

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  17. In the preparation of compounds of Xe, Bartlett had taken O(2)^(+) Pt ...

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  18. Which of the possible following florides of xenon is impossible ?

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  19. Which of the following compounds of xenon cannot be prepared

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  20. Total number of lone pairs on Xe in XeF(2), XeO(3)F(2), XeF(4), XeF(6)...

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