In some ofthe reactions,thallium resembles aluminum, whereasin other it resembleswith group I mentals. Supportthis statement by givingsome evidences.

In some ofthe reactions,thallium resembles aluminum, whereasin other i

1.	In some ofthe reactions,thallium resembles aluminum, whereasin other it resembleswith group I mentals. Supportthis statement by givingsome evidences.
Answer» Solution :Aluminium shows a uniformoxidation`+3`.Like aluminium, Tl ALSO shows +3 oxidationstate is some of its compoundslike `TiCl_(3), Tl_(2)O_(3)` ETC. Like `Al, Tl` alsoforms octahedral complexes : `[AlFe_(6)]^(3-)`and `[TlF_(6)]^(3-)` Group 1 metalsshows an oxidationstate of +1. Like group 1 METALS. Tl due to inert pair effect also shows +1 oxidationstate insome of its compounds such as `Tl_(2)O, TlCl, TlClO_(4)`, etc. Like group 1 oxides, `Tl_(2)O` is strongly BASIC.