Question

If the standard reduction potential of a half-cell is positive, which redox reaction is spontaneous when paired with a hydrogen electrode?

A. oxidation

B. both reduction and oxidation

C. reduction

D. neither reduction nor oxidation

Answer 1

Reduction

Step-by-step explanation:

Answer 2

If the standard reduction potential of a half-cell is positive, the reduction reaction is spontaneous when paired with a hydrogen electrode

Step-by-step explanation:

• The relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell.
• If the standard reduction potential of a half-cell is positive, the reduction reaction is spontaneous when paired with a hydrogen electrode.
• The reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.
• The reduction to happen the electrons gained by the material that is being decreased must be transported from the atoms of ions of a different material.