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JEE Main202621 January 2026Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

Which of the following represents the correct trend for the mentioned property ? A. F > P > S > B - First Ionization Energy B. Cl > F > S > P - Electron Affinity C. K > Al > Mg > B - Metallic character D. K ₂ O > Na ₂ O > MgO > Al ₂ O ₃ - Basic character Choose the correct answer from the options given below :

Options

  1. AB and C only
  2. BA, B and D only
  3. CA and B only
  4. DA, B, C and D

Correct answer

B. A, B and D only

Step-by-step solution

A. F > P > S > B (IE₁): F has highest IE₁, P > S due to half-filled 3p^3 stability, B has lowest. Correct B. Cl > F > S > P (EA): Cl has highest EA (F smaller, more repulsion), S > P (half-filled p-orbital). Correct C. K > Al > Mg > B (Metallic character): Incorrect. Mg (Group 2) is more metallic than Al (Group 13) in same period. Correct order: K > Mg > Al > B D. K₂O > Na₂O > MgO > Al₂O₃ (Basic character): Follows electropositive nature. Al₂O₃ is amphoteric. Correct Correct statements: A, B and D only.

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