Question

Write the uses of Inert gases.

Answer 1

Hint: Firstly it is important to know that the noble gases are the almost unreactive gases found in the last group of the periodic table. Noble gases are another name for Inert gases. There are practically $7$ of them known, out of them many are very rarely found in the atmosphere. Then we can write their uses step by step to get the right answer.

 Complete step by step answer: Inert gases belong to the last group of the periodic table as they are almost unreactive in most of the situations apart from some extensive cases. This is primarily the reason they are named as the noble gases.
Now, as we know there are mainly 7 noble gases known into existence, with helium the first and then neon , argon, krypton, xenon, and the radioactive radon. Out of all these gases xenon is perhaps the most reactive and shows a lot of reaction especially with the halogens, ( the group $17$ ).
Though they are very much unreactive, they still come in a lot of uses.
-Helium is a non-inflammable gas. As being non-inflammable and light in weight, it is used in balloons for meteorological observations. It reduces the chance of error, casualties and at the same time works well.
-Liquified Helium gas has very low boiling point. Its estimated boiling point is $4.2K$. Therefore, it is used as cryogenic agent for low temperature experiments and in NMR (MRI) instruments. It also helps to sustain the power of superconducting magnets.
-The low solubility of Helium also works in favour. Due to its low solubility of Helium in blood it is mixed with oxygen as a diluent for diving apparatus.
-Neon finds its application in fluorescent bulbs and discharge tubes for display screens.
-Neon filled bulbs are used in greenhouse and botanical gardens.
-Argon is also very inert and accessible at the same time. Therefore it is used to create inert atmosphere at high temperature for various metallurgical processes such as welding and is filled in electric bulbs.

Note: There was another noble gases said to be found. Its name was given to Oganesson. Oganesson (Og) is variously predicted to be a noble gas as well or to break the trend due to relativistic effects; its chemistry has not yet been investigated.