Q. Match List-I with List-II. [table] List-I | List-II ; (A) Al³⁺ < Mg²⁺ < Na⁺ < F⁻ | (I) Ionisation Enthalpy ; (B) B < C < O < N | (II) Metallic character ; (C) B < Al < Mg < K | (III) Electronegativity ; (D) Si < P < S < Cl | (IV) Ionic radii [/table] Choose the correct answer from the options given below :
A) (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
B) (A)-(IV), (B)-(I), (C)-(III), (D)-(II)
C) (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
D) (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
Explanation
[Solution by Dr. Abubacker] Al³⁺ < Mg²⁺ < Na⁺ < F⁻ is the order of ionic radii for isoelectronic ions; B < C < O < N is the order of ionisation enthalpy (N is higher than O); B < Al < Mg < K is increasing metallic character; Si < P < S < Cl is increasing electronegativity. So A-IV, B-I, C-II, D-III. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.