Which of the following is not preferred for making of electrode?1 pointCopperSilverPlatinumSteel

To determine which material is not preferred for making electrodes, we can analyze the properties and typical applications of each option:

1. Copper: While it has excellent electrical conductivity, copper can easily corrode and form oxide layers, which can adversely affect its performance as an electrode.

2. Silver: Known for its high conductivity and low reactivity, silver is often used in electrodes, especially in applications requiring high accuracy and reliability.

3. Platinum: This material is highly resistant to corrosion and is chemically stable, making it a very good candidate for use in electrodes, especially in harsh environments.

4. Steel: Steel, although it can be conductive, is not ideal for electrodes due to its susceptibility to rust and corrosion, which can compromise the integrity and functionality of the electrode.

Conclusion

Based on the analysis, Steel is not preferred for making electrodes due to its tendency to rust and corrode easily, affecting its longevity and effectiveness.