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JEE Main 202226 JuneMorning Shift
Exam
JEE Main
Year
2022
Date
26 June
Shift
Morning Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2022 · 26 June · Morning Shift · Chemistry · d and f Block Elements

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

Choose the correct stability order of group 1313 elements in their +1+ 1 oxidation state.

Options

  1. AAl<Ga<In<TlAl < Ga < In < Tl
  2. BTl<In<Ga<AlTl < In < Ga < Al
  3. CIn < Tl < Ga < Al
  4. DGa<In<Al<TlGa < In < Al < Tl

Correct answer

A. Al<Ga<In<TlAl < Ga < In < Tl

Step-by-step solution

On moving down the group, the stability of +3+ 3oxidation state decreases while +1+ 1oxidation state increases due to inert pair effect.

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