JEE Main 2012 — Electrochemistry Question with Solution
JEE Main 2012 (19 May Online)
Question
The standard potentials of , and electrodes are , and , respectively. An aqueous solution which contains one mole per litre of the salts of each of the four metals is electrolyzed. With increasing voltage, the correct sequence of deposition of the metals at the cathode is
Choose an option
Show full solutionCorrect option: C
Correct answer
CAg, Hg, Cu only
Step-by-step explanation
More the reduction potential, more is the deposition of metals at cathode. Cation having value less than (reduction potential of ) will not deposit from aqueous solution. Hence correct order of A deposition of the metal at the cathode is
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This is a previous-year question from JEE Main 2012, 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.