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What is the main commerical source o...

What is the main commerical source of helium ?

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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-VERY SHORT ANSWER TYPES (VSA )
  1. Boiling points of interhalogen are little higher as compared to p...

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  2. Name the most abundant noble gas in air and the noble gas which ...

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  3. What is the main commerical source of helium ?

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  4. What is the value of C(p)// C(V) of noble gas ?

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  5. Which noble gas is obtained by alpha -decoy of Ra-226?

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  6. How is argon produced in the atmosphere?

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  7. Which element has the lowest bolling point?

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  8. Mention the intermoelecular forces of attraction operating among inert...

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  9. Explain why the noble gases cannot be liquefied easily.

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  10. Give an example of a fluorinating reagent.

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  11. Which compound of Xe is isostructural with ion?

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  12. Mention the state of hybridisation of Xe atom in each of the following...

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  13. Mention the state of hybridisation of Xe atom in each of the following...

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  14. Mention the state of hybridisation of Xe atom in each of the following...

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  15. Mention the state of hybridisation of Xe atom in each of the following...

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  16. Mention the state of hybridisation of Xe atom in each of the following...

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  17. Give examples of two reactions, one in which xenon fluoride acts as fl...

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  18. Mention the type of interaction responsible for the solubility of nobl...

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  19. Which out of He, Ne, Ar, Kr and Xe can be easily liquefied? Why?

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  20. Which noble gas is used for filling balloons for meteorological observ...

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