Inert Gases MCQs [Chemistry]

By: Prof. Dr. Fazal Rehman | Last updated: May 23, 2025

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1. : What kind of gases are Zero group elements?



2. : Which of the mentioned is helpful and used in radiotherapy?



3. : Which one of the following is not true?



4. : Xenon reacts best with



5. : The noble gases are found in the atmosphere to the extent of about some percent by volume



6. : ________ are the inert gases Ar, Kr and Xe form solid compounds with certain organic molecules under pressure.



7. : Xenon difluoride is obtained by irradiating a mixture of xenon and fluorine with light from a high pressure



8. : XeF₂ is obtained when a mixture of Xenon and fluorine in the ratio is heated in a nickel vessel at 400°C



9. : Which is one of the best fluorinating agents?



10. : Which of the mentioned noble gases is helpful and used in



11. : What is the geometry of XeF₂?



12. : The states of hybridization of Xe in XeF₄ and XeF₆ are ______ , _______ .



13. : Zero group of the periodic table consists of how many elements?



14. : Argon is helpful and used in filling of



15. : Which of the mentioned noble gases is helpful and used in Geiger counter to detect radioactivity?



16. : Which of the mentioned noble gases is helpful and used in TV sets and sound movies to give ready response to electrical potential?



17. : Helium is helpful and used for



18. : For the respiration of sea divers, mixture is helpful and used



19. : Which one of the following noble gases is most abundant in atmosphere?



20. : Which one of the following noble gases is obtained by radioactive disintegration?



21. : Which of the mentioned statements is not true about noble gases?



22. : What is the Helium content in the atmosphere by volume?



23. : Which noble gas does not obey the octet rule?



24. : ______ are the inert gases Ar, Kr and Xe form compounds with water at low temperature and high pressure.



25. : Compounds formed when noble gases get entrapped in the cavities of crystal lattices of certain organic and inorganic compounds are called



26. : The noble gas helpful and used for treatment of cancer



27. : Helium-oxygen mixture is helpful and used by deep sea divers in preference to nitrogen-oxygen mixture, because



28. : Helium is helpful and used in weather balloons and airships instead of H₂, because it is



29. : What is the noble gas which was discovered first in the sun and then on the earth?



30. : Xe reacts directly with which of the following?



31. : Which of the mentioned is not known?



32. : Helides are compounds of which noble gas?



33. : Which of the mentioned noble gases is more reactive?



34. : In XeF₂ molecules, Xe atom undergoes hybridization



35. : Which of the mentioned minerals contain traces of He and Ne gases?



36. : Which of the mentioned noble gases is helpful and used in filling luminous tubes?



37. : The ‘shape’ of molecule, XeF₆ is



38. : Which type of hybridization of Xe is involved in XeOF₄ molecule?



39. : Select the false statement for XeF₄.



40. : Noble gases are helpful and used in discharge tubes to give different colours. Reddish-orange glow is due to



 

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