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Question

The process of depositing a layer of any desired metal on another material, by means of electricity, is called _______.

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
electroplating

Depositing Metal via Electricity

The question describes a process where electricity is used to apply a layer of metal onto another material. This technique involves using electrical currents to facilitate the deposition of metal ions from a solution onto a substrate.

Electroplating Process Details

This specific method is defined as follows:

  • It uses electricity to deposit a thin layer of one metal onto another object.
  • The goal is to coat the base material with a desired metal.
  • This is achieved through an electrochemical process.

Therefore, the term that accurately describes this process is electroplating.

Analyzing Other Electrical Terms

Let's look at why the other options are not suitable:

  • Electromagnet: This is an object that becomes a magnet when electric current flows through it. It does not involve depositing metal layers.
  • Electro conductor: This is any material that permits the flow of electric current. It refers to a material property, not a deposition process.
  • Electrode: This is a component that conducts electricity to or from a nonmetallic part of a circuit. While used in electroplating, it is not the process itself.

Correct Term Identification

Based on the definition and analysis, the process of depositing a metal layer on another material using electricity is electroplating.

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