JEE Main 2023 — D And F Block Elements Question with Solution
From: JEE Main 2023 (Online) 6th April Evening Shift
Question
Element not present in Nessler's reagent is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Nessler's reagent is a 2% solution of potassium tetraiodomercurate(II) in aqueous potassium hydroxide. Its chemical formula is . The elements present in it are Potassium (K), Mercury (Hg), and Iodine (I). Nitrogen (N) is not present in Nessler's reagent.
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This is a previous-year question from JEE Main 2023, 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.