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JEE Main20254 Apr 2025Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

Given below are the pairs of group 13 element showing their relation in terms of atomic radius. ( B Al ),( Al Ga ),( Ga In ) and ( In Tl ) Identify the elements present in the incorrect pair and in that pair find out the element (X) that has higher ionic radius ( M ³⁺ ) that the other one. The atomic number of the element ( X ) is

Options

  1. A31
  2. B49
  3. C13
  4. D81

Correct answer

A. 31

Step-by-step solution

Size order aligned & Al Ga & Al ³⁺ Ga ³⁺ aligned Atomic number of Ga is 31

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