Question

State two important uses of noble gases.

Answer 1

1. Different gases were used for different colour lights like neon lights.
2. They are now used with oxygen in oxygen cylinders to decrease the concentration of oxygen coming to the lungs

Answer 2

The noble gases are used in industry in arc welding,

to dilute the oxygen in deep-sea divers' gas tanks,

and to fill light bulbs.

Argon is used in arc welding and in common light bulbs, as it does not react with the metal at high temperatures.