The stability of $+ 1$ oxidation state among $Al,Ga, In$ and $Tl$ increases in the sequence

  • [AIPMT 2009]
  • [NEET 2015]
  • A

    $Al < Ga < In < Tl$

  • B

    $Tl < In < Ga < Al$

  • C

    $In < Tl < Ga < Al$

  • D

    $Ga < In < Al < Tl$

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