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Questions  >>  CBSE XII  >>  Chemistry  >>  Electrochemistry
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How long (in hrs) must a current of 5 ampere be maintained to electroplate 60 g of calcium from molten $cacl_2$

$\begin{array}{1 1} 27 hours \\ 8.3\; hours \\ 11 \;hours \\ 16\;hours \end{array} $

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