JEE Main 2021 — Coordination Compounds Question with Solution
From: JEE Main 2021 (Online) 17th March Evening Shift
Question
On complete reaction of FeCl3 with oxalic acid in aqueous solution containing KOH, resulted in the formation of product A. The secondary valency of Fe in the product A is __________. (Round off to the Nearest Integer).
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Show full solutionCorrect answer: 6
Correct answer
6
Step-by-step explanation
FeCl3 + 3H2C2O4 + 6KOH K3[Fe(C2O4)3] + 3KCl + 6H2O
Coordination number = 6
Secondary valency is 6
Coordination number = 6
Secondary valency is 6
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This is a previous-year question from JEE Main 2021, covering the Coordination Compounds 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.