Chemistry · 2014
JEE Main · 12 April 2014, Shift 1 · Q36
How many electrons would be required to deposit 6.35 g of copper at the cathode during the electrolysis of an aqueous solution of copper sulphate?…
How many electrons would be required to deposit $\displaystyle 6.35$ g of copper at the cathode during the electrolysis of an aqueous solution of copper sulphate ? (Atomic mass of copper $\displaystyle =63.5 \mathrm{u}, \mathrm{N}_{\mathrm{A}}=$ Avogadro's constant) :
Official answer
(3)
$\displaystyle \frac{\mathrm{N}_{\mathrm{A}}}{5}$
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JEE Main 2014 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.