Question

Which is used for making filament of electric bulb mention one reason also?

Answer 1

The filament of bulb is made of Tungsten . Thus is because Tungsten has a very high melting point so it will not break when heat is produced in bulb.

Answer 2

Tungsten is used in making filaments of bulb bcz it has highest melting point ,lowest vapour pressure and high tensile strenght.