JEE Main 2003 — D And F Block Elements Question with Solution
From: AIEEE 2003
Question
The atomic numbers of vanadium (V), Chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23, 24, 25 and 26. Which one of these may be expected to have the highest second ionization enthalpy?
Choose an option
Show full solutionCorrect option: A
Correct answer
ACr
Step-by-step explanation
Due to stable electronic configuration of Cr+1 ion (3d5)
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This is a previous-year question from JEE Main 2003, covering the D And F Block Elements 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.