Question

Enlist the use of inert gases.

Answer 1

Inert gases:

• Inert gases are also known as noble gases.
• These are called inert gases because they are stable in nature and do not react easily.
• Inert gases includes Helium($\mathrm{He}$), Neon($\mathrm{Ne}$), Argon($\mathrm{Ar}$), Krypton($\mathrm{Kr}$), Xenon($\mathrm{Xe}$) and Radon($\mathrm{Rn}$)

Uses of inert gases:

• In metallurgical processes, Argon($\mathrm{Ar}$) is widely used to provide the necessary inert atmosphere for welding purposes and for the preparation of Titanium($\mathrm{Ti}$).
• Germanium($\mathrm{Ge}$) and Silicon($\mathrm{Si}$) crystals are used in electric light bulbs, transistors, etc along with a limited amount of Argon.
• It is used to obtain the lowest temperatures required in lasers as the boiling point of Helium($\mathrm{He}$) is the least when compared to any other liquid.
• In nuclear reactors, Helium($\mathrm{He}$) is used as a cooling gas and used as a flowing gas in liquid-gas chromatography. It is used in airships and Helium($\mathrm{He}$) balloons.
• Helium balloons are used to check the weather of a particular region.
• Helium is used by divers to dilute Oxygen($\mathrm{O}$) over Nitrogen in the gas cylinders used by them as Nitrogen($\mathrm{N}$) can easily be dissolved in the blood which results in a painful condition called bends.
• The reddish-orange glow produced by Neon light is because Neon($\mathrm{Ne}$) is used in discharge tubes.
• Xenon and krypton are used in photographic flash units and lighthouses due to the generation of very bright light.
• Neon($\mathrm{Ne}$), Xenon($\mathrm{Xe}$), and Krypton($\mathrm{Kr}$) are used to produce different color lights.