Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Electro Chemistry

Question:

Why Standard hydrogen electrode has zero electrode potential?

Options:

Because Hydrogen is a gas.

It is easiest to oxidize hydrogen.

Hydrogen has only one electron.

It is assumed to be zero.

Correct Answer:

It is assumed to be zero.

Explanation:

According to convention, a half-cell called standard hydrogen electrode represented by Pt(s)|H2(g)|H+(aq), is assigned a zero potential at all temperatures.