The electrolyte in electrolytic refining of Pb is
Lead fluosilicate
Hydrofluosilicic Acid
Both a and b
None of these
The electronic c0nfiguration of group 14 elements is
ns2,np5
ns2,np3
ns2,np2
ns2,np4
Plumbo solvency is the phenomenon of solvent action of _______ on lead.
Pure water in absence of air
Water with dissolved air
Among the halogen acid, the weakest acid is
HF
HCl
HBr
HI
