1.

Stability of monovalent and trivalent cations of Ga, In, TI lie in the following sequence

Answer»

`Ga^(3+) lt ln^(3+) gt Tl^(3+)`
`Ga^(3+) gt ln^(3+) gt Tl^(3+)`
`Tl^(+) gt ln^(+) gt Ga^(+)`
`Ga^(3+) gt ln^(+) gt Tl^(+)`

Solution :The stablity of +1 OXIDATION state INCREASES as we move down the group.


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