NTA Abhyas NEET2020ChemistryElectrochemistryPractice
How much will the reduction potential of a hydrogen electrode change when its solution initially at p H = 0 is neutralised to p H = 7
Options
- AIncrease by 0.059 V
- BDecrease by 0.059 V
- CIncrease by 0.41 V
- DDecrease by 0.41 V
Correct answer
D. Decrease by 0.41 V
Step-by-step solution
E = E o - 0.0591 ' n ' log 1 H + E = 0 - 0.0591 1p H If p H = 0 E = 0 If p H = 7 E = - 0.0591 1 × 7 = - 0.4137