NEET2011ChemistryElectrochemistryActual
Standard electrode potential for Sn ⁴⁺ / Sn ²⁺ couple is +0.15 ~V and that for the Cr ³⁺ / Cr couple is -0.74 . These two couples in their standard state are connected to make a cell. The cell potential will be
Options
- A+0.89 ~V
- B+0.18 ~V
- C+1.83 ~V
- D+1.199 ~V
Correct answer
A. +0.89 ~V
Step-by-step solution
aligned & E_ Sn ⁴⁺ / Sn ²⁺ ^ V & E_ CI ³⁺ / Cr ^ =-0.74 ~V & E_ cell ^ =E_ cathode ^ (R P)-E_ anode ( RP ) ^ &=0.15-(-0.74) &=+0.89 ~V . aligned