CSIR NET 2024 | Physical Chemistry (Electrochemistry) | (19 February 2024)

The equilibrium constant for the formation of the complex Zn(NH₃)₄²⁺ at 25°C close to:

[Given  V and  V]

The cell voltage of Daniel cell [Zn|ZnSO₄(aq)||CuSO₄(aq)| Cu] is 1.07V. If reduced potential of Cu²⁺|Cu is 0.34 V, the reduction potential of Zn²⁺|Zn is

In the following concentration cellAg(s)|AgCl(saturated)||AgNO₃(aq)(1M)|Ag(s)

K_spAgCl = 1x10^-10

The cell potential will be:

_a.

_b.

_c.

_d.

EMF of the following are

Cu | CuSO₄ (aq 1.0 mol/kg) || Hg₂SO₄(s)| Hg(l)| Pt at 25ºC and 1 bar is 0.36 V. The value of the mean activity coefficient of CuSO₄ at 25ºc and 1 bar [given: Standard electrode potential value at 25ºC for

 _and  are 0.34 V and 0.62 V respectively. Consider at 25ºC = 0.0256 V

No. of e^‑ transfer take place in calomel electrode is: