Question

A student made a list of the applications of electroplating on metals. He learns that zinc metal is electroplated over iron. Why the electroplating of iron is done? 

(a) To changes the surface properties of the iron.

(b) To make it resistant to atmospheric moisture.

(c) To improve the appearance of iron and make it shiny.

(d) To alters the chemical properties of the iron and make it stronger

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Answer 1

HELLO DEAR,

ANSWER:-

(b) To make it resistant to atmospheric moisture.

Zinc metal is electroplated over iron metal because it prevent the iron metal from corrosion. When is zinc coating is electroplated on to the surface of iron metal, it create a formidable corrosion- resistance barrier. It also provides a number of other important benefits.

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Answer 2

The electroplating of iron is done to make it resistant to atmospheric moisture.

• Electroplating refers to the process of plating one metal over another in order to prevent the corrosion (rusting) of the metal. Various metals can be used for electroplating.
• Iron metal is coated with a layer of zinc and this process is termed as galvanization.
• Since zinc is more reactive than iron, it will protect the surface of iron from atmospheric moisture and thus prevent corrosion.