Why was group 18 named as noble gases?
Octet electron configuration
Minute quantity in atmosphere
Chemical inactivity
Preparation of xenon and krypton compounds
The electronic c0nfiguration of group 14 elements is
ns2,np5
ns2,np3
ns2,np2
ns2,np4
The electrolyte in electrolytic refining of Pb is
Lead fluosilicate
Hydrofluosilicic Acid
Both a and b
None of these
Why was group 18 named as inert gases?
minute quantity in atmosphere
chemical inactivity
both a and b
none of these
