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Match List-I with List-II List-I (A) Al3+ < Mg2+ < Na+ < F- (B) B < C < O < N (C) B < Al < Mg < K (D) Si < P < S < Cl List-II (I) Ionisation Enthalpy (II) Metallic character (III) Electronegativity (IV) Ionic radii

1. A-IV, B-I, C-III, D-II
2. A-II, B-III, C-IV, D-I
3. A-IV, B-I, C-II, D-III
4. A-III, B-IV, C-II, D-I

Correct answer: A-IV, B-I, C-II, D-III

Solution

The correct option matches the properties with their trends: A-IV indicates that ionic radii increase with the charge and size of the ions; B-I shows that ionization enthalpy increases with higher atomic number in the same period; C-II reflects that metallic character decreases down the group; and D-III aligns electronegativity trends across periods.

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