Question

Iron objects are generally electroplated with _______

Answer 1

The term "electroplating" refers to the act of covering certain materials with a thin coating of a different metal and the term "plating" refers to the process of covering some materials with a thin film of a different metal. The technique of plating a coating of any metal on another material by passing an electric current is therefore defined as electroplating.

Complete answer:
Electroplating is used to protect metals against corrosion and to provide a decorative touch. Electroplating is a common technique in a variety of sectors, including vehicles, aircraft, electronics, jewellery, and toys. An electrolytic cell is used for electroplating. The cathode is linked to the metal to be electroplated. The electrolyte is a salt solution of metal with which electroplating must be carried out. The electrolyte ionises, releasing positively charged ions (metal ions) that travel towards the anode, electroplating the target item.
Electroplating a thin layer of chromium onto a metal item is known as chrome plating. The chromed coating might be ornamental, offer corrosion protection, make cleaning easier, or improve the hardness of the surface. For cosmetic reasons, a less costly chrome imitator is sometimes employed.
The following steps are usually followed when chrome plating a component:
Heavy soiling must be removed by degreasing.
Cleaning by hand to eliminate all traces of dirt and surface contaminants.
Depending on the substrate, several pretreatments are used.
Place it in the chrome plating vat and let it warm up to solution temperature.
To achieve the specified thickness, apply plating current for the appropriate duration.
Hence Chromium is the correct answer.

Note:
Depending on the type of substrate being plated, there are several variants to this procedure. Different etching solutions, such as hydrochloric, hydrofluoric, and sulfuric acids, are required for different substrates. The etching of nimonic alloys with ferric chloride is very popular. When the component is electrically live, it may enter the chrome plating vat. A complying anode composed of lead/tin or platinumized titanium is sometimes used in the component. Hard chrome vat plates at a rate of around 1 mil per hour.