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The increasing order of stability of +1 oxidation state of group 13 elements is:

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The increasing order of stability of +1 oxidation state of group 13 elements is:

(a) Ga < Al < In < Tl

(b) TI< In < Ga < Al

(c) Al< Ga< TI<In

(d) Al < Ga < In <TI

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(d) Al < Ga < In <TI

On going down the group 13, stability of +1 oxidation state increases due to inert pair effect.

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