alleryStandard hydrogen electrode (SHE) is assigned electrode potential:
A+1.00 V
B−1.00 V
C0.00 V
D0.76 V
Answer & Solution
Correct answer: C. 0.00 V
1. By convention, the SHE (1 M H⁺, 1 atm H₂, 25 °C) is assigned E° = 0.00 V exactly.
2. All other electrode potentials are reported relative to this reference.
3. The 0.76 V is the E° for Zn²⁺/Zn (reduction potential −0.76 V; cell against SHE is +0.76 V).
_Source: syllabus Chem Ch 8 §8.4 Standard Hydrogen Electrode_
Keep practising Classification of Elements and Periodicity in Properties
Browse all Classification of Elements and Periodicity in Properties questions for AP Intermediate 1st Year, or explore more Chemistry topics.
Related questions
Line up three from one blockIn KO₂ (potassium superoxide), the oxidation state of oxygen is:Hydrogen peroxide (H₂O₂) can act both as an oxidising agent AND as a reducing agent becausThe n-factor of KMnO₄ in acidic medium (Mn⁷⁺ → Mn²⁺) is:In the half-reaction 2 H₂O → O₂ + 4 H⁺ + 4 e⁻, water acts as:An element shows the SAME oxidation number in all its compounds. Which is it?Balance the skeleton equation MnO₄⁻ + Fe²⁺ + H⁺ → Mn²⁺ + Fe³⁺ + H₂O. The coefficient of MnIn an electrochemical (galvanic) cell, oxidation occurs at the: