Chemistry · 2022
JEE Main · 25 July 2022, Shift 1 · Q84
The cell potential for Zn | Zn^2+( aq ) ∥ Sn^x+| Sn is 0.801 V at 298 K. The reaction quotient for the above reaction is 10^-2. The number of…
The cell potential for $\displaystyle \mathrm{Zn}\left|\mathrm{Zn}^{2+}(\mathrm{aq}) \| \mathrm{Sn}^{x+}\right| \mathrm{Sn}$ is $\displaystyle 0.801$ V at $\displaystyle 298$ K. The reaction quotient for the above reaction is $\displaystyle 10^{-2}$. The number of electrons involved in the given electrochemical cell reaction is \_\_\_\_.
$\displaystyle \left(\right.$ Given : $\displaystyle \mathrm{E}_{\mathrm{Zn}^{2+} \mid \mathrm{Zn}}^{\mathrm{o}}=-0.763 \mathrm{~V}, \mathrm{E}_{\mathrm{Sn}^{x+} \mid \mathrm{Sn}}^{\mathrm{o}}=+0.008 \mathrm{~V}$ and $\displaystyle \left.\frac{2.303 \mathrm{RT}}{\mathrm{F}}=0.06 \mathrm{~V}\right)$
Official answer
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.