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AP EAMCET202021 Sep 2020Evening ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

The possible oxidation states of group 13 elements is/are

Options

  1. A+3
  2. B(+1,+3 )
  3. C+1
  4. D(+1,+2,+3 )

Correct answer

B. (+1,+3 )

Step-by-step solution

The general oxidation state exhibited by the group 13 elements in the group are +3 and +1 due to its general electronic configuration (n s^2, n p^1 ). As we go down the group of boron family, the tendency to form +1 ion increases. This is due to inert pair effect. Hence, the correct option is (b).

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