MHT CET202416 May 2024Morning ShiftChemistryElectrochemistryActual
Consider the following cell . Zn _ ( s ) Zn _ ( IM ) ²⁺ ) | KCl _ ( sat ) | (paste) Hg ₂ Cl ₂ Hg E ^ cell =1.007 ~V and E ^ calomel =0.242 ~V What is the standard potential of Zn ?
Options
- A-0.765 ~V
- B0.765 V
- C-1.247 V
- D1.247 V
Correct answer
A. -0.765 ~V
Step-by-step solution
The standard cell potential is given by aligned E_ cell ^o & =E_ cathode ^o-E_ anode ^o E_ cell ^o & =E_ Calomel ^o-E_ Z n ^o & =(0.242 ~V )-1.007 ~V & =-0.765 ~V aligned