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JEE Main
Exam
JEE Main
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main · Chemistry · p Block Elements (Group 13 & 14)

The stability of +1 oxidation state increases in the sequence

The stability of +1 oxidation state increases in the sequence

Options

  1. ATl<In<Ga<AlTl < In < Ga < Al
  2. BIn < Tl < Ga < Al
  3. CGa<In<Al<TlGa < In < Al < Tl
  4. DAl<Ga<In<TlAl < Ga < In < Tl

Correct answer

D. Al<Ga<In<TlAl < Ga < In < Tl

Step-by-step solution

Group −13- 13 elements exhibit +3+ 3 and~+1+ 1~oxidation states.~ Stability of the lower oxidation state increases on moving down the group due to inert pair effect.
Al+<Ga+<In+<Tl+{Al}^{+} < {Ga}^{+} < {In}^{+} < {Tl}^{+}
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