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JEE Main20245 Apr 2024Evening ShiftChemistryp Block Elements (Group 13 & 14)Actual

The correct statements from the following are : (A) The decreasing order of atomic radii of group 13 elements is ( Tl > ) In (> Ga > Al > B ). (B) Down the group 13 electronegativity decreases from top to bottom. (C) ( Al ) dissolves in dil. ( HCl ) and liberates ( H ₂ ) but conc. ( HNO ₃ ) renders ( Al ) passive by forming a protective oxide layer on the surface. (D) All elements of group 13 exhibits highly stable +

Options

  1. A(A), (C) and (E) only
  2. B(A) and (C) only
  3. C(C) and (E) only
  4. D(A), (B), (C) and (E) only

Correct answer

C. (C) and (E) only

Step-by-step solution

A. size order T > In > Al > Ga > B B. Electronegativity order B > Al So, only C, E statements are correct.

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