Given the standard reduction potentials. `{:(O_(2)+4H^(+)+4e^(-)rarr2H_(2)O,E^(@)=1.23V),(Br_(2)+2e^(-)rarr2Br^(-),E^(@)=1.08V),(2H^(+)+2e^(-)rarrH_(2),E^(@)=0.00V),(Na^(+)+e^(-)rarrNa,E^(@)=-2.71V):}` What products are formed in the electrolyss of 1M NaBr in a solution with `[H_(3)O^(+)]=1M`?A. Na(s) and `O_(2)(g)`B. Na(s) and `Br_(2)(g)`C. `H_(2)(g)` and `Br_(2)(g)`D. `H_(2)(g)` and `O_(2)(g)`

Given the standard reduction potentials. `{:(O_(2)+4H^(+)+4e^(-)rarr2H

1.	Given the standard reduction potentials. `{:(O_(2)+4H^(+)+4e^(-)rarr2H_(2)O,E^(@)=1.23V),(Br_(2)+2e^(-)rarr2Br^(-),E^(@)=1.08V),(2H^(+)+2e^(-)rarrH_(2),E^(@)=0.00V),(Na^(+)+e^(-)rarrNa,E^(@)=-2.71V):}` What products are formed in the electrolyss of 1M NaBr in a solution with `[H_(3)O^(+)]=1M`?A. Na(s) and `O_(2)(g)`B. Na(s) and `Br_(2)(g)`C. `H_(2)(g)` and `Br_(2)(g)`D. `H_(2)(g)` and `O_(2)(g)`
Answer» Correct Answer - C

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The EMF of the following cell: `Zn| Zn^(2+)(0.1M) || Cl^(-)(0.01M) | AgCl | Ag` is: [Given : E_(Zn^(2+)|/Zn)^(@) = -0.76V`, `E_(Cl^(-)| AgCl|Ag)^(@)` = 0.22 V`, `(2.303RT)/(F) = 0.06]`A. 0.96 VB. 0.345 VC. 1.23D. 1.13 V
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The emf of the cell `Zn|ZnCl_(2)` (0.05M) | AgCl(s)`,Ag is 1.015 V at 298 K and the temperature coefficient of its emf is `-4.92 xx 10^(-4)` V/K. How many of the reaction thermodynamic parameter `DeltaG`, `DeltaS` and `DeltaH` are negative at 298 K?A. None of themB. One of themC. Two of themD. All of them
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What must be concentration of `Ag^(+)` in an aqueous solution containing `Cu^(2+) =1.0 M` so that bot the metals can be deposited on the cathode simultaneously. Given that `E_(Cu//Cu^(2+))^(0)=-0.34V` and `E_(Ag^(+)//Ag)^(0)=0.812V,T=298K`A. Nearly `10^(-19)` MB. `10^(-12)` MC. `10^(-8)` MD. Nearly `10^(-16)` M
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The number of electrons delivered at the cathode during electrolysis by a current of `1` ampere in 60 seconds is (charger on electron `= 1.60 xx 10^(-19)C`)A. `3.74 xx 10^(20)`B. `6.0 xx 10^(23)`C. `7.48 xx 10^(21)`D. `6.0 xx 10^(20)`

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