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Choose the correct stability order of group 13 elements in their +1 oxidation state.

Option: 1

\mathrm{Al}<\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}


Option: 2

\mathrm{Tl}<\mathrm{In}<\mathrm{Ga}<\mathrm{Al}


Option: 3

\mathrm{Al}<\mathrm{Ga}<\mathrm{Tl}<\mathrm{In}


Option: 4

\mathrm{Al}<\mathrm{Tl}<\mathrm{Ga}<\mathrm{In}


Answers (1)

best_answer

As we move  form top to Bottom in group 13, stability of  +1 oxidation state increases due to inert pair effect.

Hence correct order of stability:-
\mathrm{A l < G a<\text { In }<T l}

Option (1) is correct

Posted by

Anam Khan

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