During the purification of copper by electrolysis:A. the anode used is made of copper oreB. pure copper is deposited on the cathodeC. the impurities such as Ag, Au present in solution as ionsD. concentration of `CuSO_4` solution remains constant during dissolution of Cu

During the purification of copper by electrolysis:A. the anode used is

1.	During the purification of copper by electrolysis:A. the anode used is made of copper oreB. pure copper is deposited on the cathodeC. the impurities such as Ag, Au present in solution as ionsD. concentration of `CuSO_4` solution remains constant during dissolution of Cu
Answer» Correct Answer - A::B::D

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Based on the data given below, the correcy order of reducing power is: `Fe_((aq.))^(3+) + e rarr Fe_((aq.))^(2+), E^(@) = +0.77 V` `Al_((aq.))^(3+) + 3e rarr Al_((s)), E^(@) = -1.66 V` `Br_(2(aq.)) + 2e rarr 2Br_((aq.))^(-), E^(@) = +1.08 V`A. `Br^(-) lt Fe^(2+) lt Al`B. `Fe^(2+) lt Al lt Br^(-)`C. `Al lt Br^(-) lt Fe^(2+)`D. `Al lt Fe^(2+) lt Br^(-)`
Based on the data given below, the correcy order of reducing power is: `Fe_((aq.))^(3+) + e rarr Fe_((aq.))^(2+), E^(@) = +0.77 V` `Al_((aq.))^(3+) + 3e rarr Al_((s)), E^(@) = -1.66 V` `Br_(2(aq.)) + 2e rarr 2Br_((aq.))^(-), E^(@) = +1.08 V`A. `Br^(-) lt Fe^(2+) lt Al`B. `Fe^(2+) lt Al lt Br^-`C. `Al lt Br^(-) lt Fe^(2+)`D. `Al lt Fe^(2+) lt Br^(-)`
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During the purification of copper by electrolysis:A. the anode used is made of copper oreB. pure copper is deposited on the cathodeC. the impurities such as Ag, Au present in solution as ionsD. concentration of `CuSO_4` solution remains constant during dissolution of Cu

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