What are the conditions for good electroplating?
What are the conditions for good electroplating?
The correct option is D The electrolyte must have a high concentration of the metal ions to be deposited on the article.
Explanation for correct option
(d) The electrolyte must have a high concentration of the metal ions to be deposited on the article.
Higher the concentration of negative ion in the electrolytic solution, greater is Its probability of being discharged at the anode
The following are the electroplating requirements:
• The electrolyte substance must be able to properly conduct electricity in order to transport the cation and anion to their proper locations.
• The cathodes and anodes must be thoroughly cleaned in order to participate fully in the electroplating process. Any unwanted external materials can cause problems with the electroplating process.
• The temperature of the atmosphere and the amount of electricity used should be controlled in a precise way. Excessive or insufficient amounts of the above-mentioned elements can result in electroplating failure.
• For the electroplating process to be completed, the anode and cathode must have the appropriate chemical and physical qualities. The cathode and anode, for example, should not react with the electrolyte before generating electricity, implying that they are extremely reactive.
Explanation for incorrect option
(i) A direct current is to be used.
electric current is used in electroplating to reduce dissolved metal cations (positively charged ions) at the cathode (negatively charged electrode) to produce a thin coherent metal coating on the electrode. a dc current would not reduced the dissolved metal
(ii) A low current for a longer time is to be used.
We employ low current and a longer time duration to slow down the reaction kinetics; with a slower reaction speed, the electroplating process is more efficient, and a desired thickness of metal electroplating can be achieved by optimizing the time duration.
(iii) The article to be electroplated should be cleaned thoroughly.
Cleaning is typically performed to prepare a part for future finishing, such as electroplating, electroless plating, painting, electrocoating, anodizing, electropolishing, conversion coating, and sealing. Cleaning should improve the appearance of the cleaned part's surface. However, if not applied properly, it can damage the surface.
The electrolyte must have a high concentration of the metal ions to be deposited on the article.
Explanation for correct option
(d) The electrolyte must have a high concentration of the metal ions to be deposited on the article.
Higher the concentration of negative ion in the electrolytic solution, greater is Its probability of being discharged at the anode
The following are the electroplating requirements:
• The electrolyte substance must be able to properly conduct electricity in order to transport the cation and anion to their proper locations.
• The cathodes and anodes must be thoroughly cleaned in order to participate fully in the electroplating process. Any unwanted external materials can cause problems with the electroplating process.
• The temperature of the atmosphere and the amount of electricity used should be controlled in a precise way. Excessive or insufficient amounts of the above-mentioned elements can result in electroplating failure.
• For the electroplating process to be completed, the anode and cathode must have the appropriate chemical and physical qualities. The cathode and anode, for example, should not react with the electrolyte before generating electricity, implying that they are extremely reactive.
Explanation for incorrect option
(i) A direct current is to be used.
electric current is used in electroplating to reduce dissolved metal cations (positively charged ions) at the cathode (negatively charged electrode) to produce a thin coherent metal coating on the electrode. a dc current would not reduced the dissolved metal
(ii) A low current for a longer time is to be used.
We employ low current and a longer time duration to slow down the reaction kinetics; with a slower reaction speed, the electroplating process is more efficient, and a desired thickness of metal electroplating can be achieved by optimizing the time duration.
(iii) The article to be electroplated should be cleaned thoroughly.
Cleaning is typically performed to prepare a part for future finishing, such as electroplating, electroless plating, painting, electrocoating, anodizing, electropolishing, conversion coating, and sealing. Cleaning should improve the appearance of the cleaned part's surface. However, if not applied properly, it can damage the surface.
