Question

Tl+H2O+O2→A. A is .

• A. $T{l}_2{O}_3$
• B. $TlOH$
• C. $Tl(OH{)}_3$

Answer 1

The correct option is B $TlOH$

Due to inert pair effect Tl shows +1 oxidation state. Therefore TlOH is formed. The valence "s” electrons act as inner core electrons due to poor shielding of "d” and "f” electrons is called as inert pair effect.