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5.64 \mathrm{~F} of electricity is passed through A solution of Cushy. The mass of copper deposited at cathode is
 

Option: 1

122.48
 


Option: 2

127.68
 


Option: 3

125.64
 


Option: 4

179.07
 


Answers (1)

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\begin{aligned} & \mathrm{Cu}^{+2}+2 e^{-} \rightarrow \mathrm{Cu} \\ & 2 \text { Faraday }=2 \text { equivalence of } \mathrm{cu} \\ & 5.64 \text { Faraday }=\frac{2}{2} \times 5.64 \\ & =5.64 \text { equivalents of } \text { Cu } \\ & \text { Mass of Cu deposits }=5.64 \times \frac{63.5}{2} \\ & =179.07 \\ \end{aligned}

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