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In the electrolysis of $CuCl_2$ solution using copper electrode,if 2.5g of Cu is deposited at cathode,then at anode

$\begin{array}{1 1}\text{890 mL of }Cl_2\text{ at STP is deposited}\\\text{445 mL of }O_2\text{ at STP is liberated}\\\text{2.5g of copper is deposited}\\\text{a decrease of 2.5g of mass takes place}\end{array} $

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Answer : a decrease of 2.5g of mass takes place
The reaction occurring at anode is $Cu\rightarrow Cu^{2+}+2e^-$.Thus,2.5g of Cu will be lost at anode.
answered Jul 23, 2014 by sreemathi.v

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