`E_(Cu^(+2)//Cu)^(@)=0.34V, E_(Zn//Zn^(+))^(@)=0.76V` A cell formed by the conbination of Cu and Zn (a) when `CuSO_(4)` is added to `Cu^(+2)` compartment what is the effect on emf of cell (b) when `ZNH_(3)` is added to `Cu^(+2)` compartment what is the effect on emf of cell (c ) When `ZnSO_(4)` is added to `Zn^(+2)` compartment is the effect on emf of cell (d) When `Zn^(+2)` is diluted what is the effect on emf of cell ?

`E_(Cu^(+2)//Cu)^(@)=0.34V, E_(Zn//Zn^(+))^(@)=0.76V` A cell formed by

1.	`E_(Cu^(+2)//Cu)^(@)=0.34V, E_(Zn//Zn^(+))^(@)=0.76V` A cell formed by the conbination of Cu and Zn (a) when `CuSO_(4)` is added to `Cu^(+2)` compartment what is the effect on emf of cell (b) when `ZNH_(3)` is added to `Cu^(+2)` compartment what is the effect on emf of cell (c ) When `ZnSO_(4)` is added to `Zn^(+2)` compartment is the effect on emf of cell (d) When `Zn^(+2)` is diluted what is the effect on emf of cell ?
Answer» (a) increases (b) decreases (c ) decreases (d) increases

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Define molar conductivity of a solution and explain how molar conductivity changes with change in concentration of a solution for a weak and a strong electrolyte.
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For the cell reaction `Cu^(2+)(C_(1),aq.)+Zn(s)hArrZn^(2+)(C_(2),aq)+Cu(s)` of an electrochemical cell, the change in free energy `(DeltaG)` of a given temperature is a function ofA. `lnC_(1)`B. `lnC_(2)//C_(1)`C. `ln (C_(1) + C_(2))`D. `ln C_(2)`
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Based on the data given below, the correct 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 A1`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^(-)`
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^(-)`
What are elementary reactions ?

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