" Argen is used in Arc welding because "

Argon is used in arc welding because

Argon is used in arc welding because

Argon is used in welding because of its

Aluminium powder is used in thermite welding because :

Aluminium powder is used in thermite welding because

Choose the correct answer from the choices : Aluminium powder is used in thermite welding because

(A) 'Ar' is used for arc welding of metals or alloys. (R) Ar provides an inert atmosphere for metal (or) alloys during arc welding