Why was group 18 named as noble gases?
Octet electron configuration
Minute quantity in atmosphere
Chemical inactivity
Preparation of xenon and krypton compounds
Lead is used as
Telephone wires
Additive to petrol
For making alloys
All of the above
Why was group 18 named as inert gases?
minute quantity in atmosphere
chemical inactivity
both a and b
none of these
The electrolyte in electrolytic refining of Pb is
Lead fluosilicate
Hydrofluosilicic Acid
Both a and b
None of these
