JEE Main 2023 — General Principles and Processes of Isolation of Metals Question with Solution
JEE Main 2023 (31 Jan Shift 2)
Question
Which one of the following statements is incorrect ?
Choose an option
Show full solutionCorrect option: A
Correct answer
Avan Arkel method is used to purify tungsten.
Step-by-step explanation
van Arkel method is used to purify Zirconium and Titanium. This method is very useful for removing all the oxygen and nitrogen present in the form of impurity in certain metals like Zr and Ti. The crude metal is heated in an evacuated vessel with iodine. The metal iodide being more covalent, volatilises:
The metal iodide is decomposed on a tungsten filament, electrically heated to about .
The metal iodide is decomposed on a tungsten filament, electrically heated to about .
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This is a previous-year question from JEE Main 2023, covering the General Principles and Processes of Isolation of Metals 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.