The relative stability of +1 oxidation state of group 13 elements follows the order :

Question

The relative stability of +1 oxidation state of group 13 elements follows the order : (A) Al < Ga < Tl < In (B) Tl < In < Ga < Al (C) Al < Ga < In < Tl (D) Ga < Al < In < Tl

Tardigrade Admin · Accepted Answer

Due to inert pair effect as we move down the group in 13th group lower oxidation state becomes more stable. Al < Ga < In < T ℓ

Q. The relative stability of $+ 1$ oxidation state of group $13$ elements follows the order :

$A l < G a < Tl < I n$

$Tl < I n < G a < A l$

$A l < G a < I n < Tl$

$G a < A l < I n < Tl$

Due to inert pair effect as we move down the group in $1 3^{t h}$ group lower oxidation state becomes more stable.
$A l < G a < I n < T ℓ$

Q. The relative stability of +1 oxidation state of group 13 elements follows the order :

Al<Ga<Tl<In

Tl<In<Ga<Al

Al<Ga<In<Tl

Ga<Al<In<Tl