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AP EAMCET202319 May 2023Morning ShiftChemistryChemical Bonding and Molecular StructureActual

Relative stability orders of +1,+3 oxidation states of Ga , In, T 1 are respectively

Options

  1. ATl ⁺> In ⁺> Ga ⁺, Ga ³⁺> In ³⁺> Tl ³⁺
  2. BGa ⁺> In ⁺> Tl ⁺, Tl ³⁺> In ³⁺> Ga ³⁺
  3. CGa ⁺> In ⁺> Tl ⁺, Ga ³⁺> In ³⁺> Tl ³⁺
  4. DTl ⁺> In ⁺> Ga ⁺, Tl ³⁺> In ³⁺> Ga ³⁺

Correct answer

A. Tl ⁺> In ⁺> Ga ⁺, Ga ³⁺> In ³⁺> Tl ³⁺

Step-by-step solution

Due to inert pair effect, the stability of +1 state in group 13 elements increases down the group. Opposite trend is observed for +3 state stability.

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