JEE Main 2007 — Electrochemistry Question with Solution
JEE Main 2007
Question
The cell, , was allowed to be completely discharged at . The relative concentration of to is
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
$\begin{aligned}
& \mathrm{E}_{\mathrm{cell}}=\mathrm{E}_{\mathrm{cell}}^{\circ}-\frac{0.0591}{\mathrm{n}} \log \mathrm{Q} \\
& \text { Where } \mathrm{Q}=\frac{\left[\mathrm{Zn}^{2+}\right]}{\left[\mathrm{Cu}^{2+}\right]}
\end{aligned}$
For complete discharge
So
Hence, (C) is correct.
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This is a previous-year question from JEE Main 2007, 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.