JEE Main 2005 — Electrochemistry Question with Solution
From: AIEEE 2005
Question
Aluminium oxide may be electrolysed at 1000oC to furnish aluminium metal (Atomic
mass = 27 amu; 1 Faraday = 96,500 Coulombs). The cathode reaction is Al3+ + 3e- Alo To prepare 5.12 kg of aluminium metal by this method would require
Choose an option
Show full solutionCorrect option: A
Correct answer
A5.49 107 C of electricity
Step-by-step explanation
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This is a previous-year question from JEE Main 2005, covering the Electrochemistry 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.