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The noble gas which behaves abnormally i...

The noble gas which behaves abnormally in liquid state is

A

`Xe`

B

`Ne`

C

`He`

D

`Ar`

Text Solution

Verified by Experts

The correct Answer is:
C
Liquid He is unique liquid as it exists in two forms, He`(I)` and He`(II)`.He`(I)` is a normal liquid with normal properties. On cooling to `2.19 k` and `38mm` pressure it changes to He `(II)` with abrupt changes in many physical properties such as density dielectric constant and specific heat. He `(II)` is super fluid or quantum mechanical liquid. it has very high heat of conductance `(600 " times of Cu ")`, low visosity `(1//10 " of " H_(2) " gas ")` and flat meniscus (a low surface tension).
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A2Z-P BLOCK ELEMENTS ( GROUP 15,16,17,18)-General Properties And Fluorides Of Xenon (Group 18)
  1. In XeF(2).2SbF(5)

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  2. The poisson's ratio for inert gases is:

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  3. The none-existent species is

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  4. Noble gases can be separated by:

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  5. The noble gas which behaves abnormally in liquid state is

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  6. The ease of liquefation of noble gases decrease in the order:

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  7. The formation of O(2)^(+)[PtF(6)]^(-) is the basis for the formation o...

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  8. Out of (i)XeO(3)(ii)XeO(2)F(2) and (iii)XeO(4), the molecules having s...

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  9. [HXeO(4)]^(-)+Ohrarr[X]+[Y]+O(2)+H(2)O The products [X] and [Y] in u...

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  10. The oxidation number of xenon in XeOF(2) is

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  11. When a solution of XeO(3) is treated with metal fluoride, the product ...

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  12. Among the following molecules, (i)XeO(3)(ii)XeOF(4)(iii)XeF(6) those h...

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  13. Helium is used in gas balloon instead of hydrogen because

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  14. [HXeO(4)]^(-)+OH^(-)rarr[X]+[Y]+O(2)+H(2)O The products [X] and [Y] ...

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  15. In XeO(3),Xe is

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  16. In Kroll and Icl process of the production of titaninum, the inert gas...

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  17. Match the shape to the formula. Which pairing is incorrect?

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  18. Helium gives a characteristic spectrum with:

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  19. The number of (ppi-dpi) pi-bonds present in XeO(3) and XeO(4) respecti...

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  20. Which of the following is planar?

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