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CGP EDU Academic Team
Published on: August 13, 2026
Arrange the following in correct order of stability :
(i) Ga + , In + , Tl + (ii) As +5 , Sb +5 , Bi +5
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(i) Ga + < In + < Tl + (ii) As +5 > Sb +5 > Bi +5
Sol. (i) In group-13, stability of +1 oxidation state increases on moving down the group, due to inert pair effect.
(ii) In group-15, stability of +5 oxidation state decreases on moving down the group, due to inert pair effect.
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