In an electrochemical cell, the anode is

Question

BlackTom AI · Accepted Answer

In electrochemistry, the role of the anode is tied to oxidation processes during cell operation. 
Option 1: 'always used up before the cathode.' This is a misconception: electrodes are not described by being exhausted in this way; all that happens is electrons are transferred through the external circuit and ions interact; depending on the cell type, the anode may undergo oxidation continuously, but saying it is always used up before the cathode confuses function with durability. 
Option 2: 'never a metal.' The anode can be a metal or a nonmetal material; there is no universal rule that anode cannot be a metal. The key criterion is oxidation at that electrode, not the elemental identity of the electrode material. 
Option 3: 'the electrode at which oxidation takes place.' This aligns with the standard definition: oxidation occurs at the anode, and electrons are released into the external circuit. This description matches the fundamental half-reaction concept where oxidation is defined at the anode. 
Option 4: 'the material used to connect the two half-cells to each other.' That describes the external conductive path or salt bridge/electrode connections, not the identity or function of the anode itself. The anode is not the connector material but the site of oxidation. 
Overall, the statements contrast: only the third option correctly identifies the anode as the site of oxidation, while the others mix up function with durability, material identity, or the purpose of the connecting medium.

CHE 1V_SS1 2025 Final Exam_SS1_2025_Proctored

In an electrochemical cell, the anode is

View Explanation

Log in for full answers

Similar Questions

When potassium hydroxide is combined with _______, the chemical reaction promotes current flow in the presence of an applied voltage.

A galvanic cell is constructed from the Sn4+/Sn2+ and Zn2+/Zn half cells. With reference to the Standard Reduction Potential Table the formula sheet, which of the following statements is correct about this cell?

In a fuel cell,

What is the true about concentration cell?

The relationship between Gibbs free energy and E°cell involves n and F. These are, respectively,

More Practical Tools for International Students

Exam Browser Assistant

Stylized Writing Assistant

Plagiarism Checker Assistant

Citation Assistant

In-Class Translation Assistant

Class Notes Assistant

Quiz Search Assistant

Past Exam Questions by School

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler