JEE Main 2026 — Classification of Elements and Periodicity in Properties Question with Solution
JEE Main 2026 (21 January Shift 1)
Question
Which of the following represents the correct trend for the mentioned property ?
A. \ \ \ - \ \ \ First Ionization Energy
B. \ \ \ - \ \ \ Electron Affinity
C. \ \ \ - \ \ \ Metallic character
D. \ \ \ - \ \ \ Basic character
Choose the correct answer from the options given below :
A. \ \ \ - \ \ \ First Ionization Energy
B. \ \ \ - \ \ \ Electron Affinity
C. \ \ \ - \ \ \ Metallic character
D. \ \ \ - \ \ \ Basic character
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: B
Correct answer
BA, B and D only
Step-by-step explanation
A. F > P > S > B (IE₁): F has highest IE₁, P > S due to half-filled 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. (Basic character): Follows electropositive nature. is amphoteric. Correct
Correct statements: A, B and D only.
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. (Basic character): Follows electropositive nature. is amphoteric. Correct
Correct statements: A, B and D only.
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This is a previous-year question from JEE Main 2026, covering the Classification of Elements and Periodicity in Properties chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.