Question

Give reason...
1. Electric bulbs are filled with chemically inactive gases like nitrogen and argon

Answer 1

1) Electric bulbs produce lots of heat when running due to the white - hot tungsten filament.

2) The tungsten can also start oxidising due to heat, thus lowering its lifespan.

3) As nitrogen and argon are very bad conductors of heat, and due to their inertness, electric bulbs are filled with chemically inactive gases like nitrogen and argon.

Answer 2

Explanation:

Electric bulbs are usually filled with chemically

inactive gases like nitrogen and argon so that the filament does not burn on heating.