Q. 154.3( 9 Votes )

Except chromium plat

Answer :

Jewellery makers electroplate silver and gold on less expensive metals. These ornaments have the appearance of silver or gold but are much less expensive. Tin cans, used for storing food items, are made by electroplating a layer of tin onto iron. The tin is less reactive as compared to iron. Thus the food is protected, against spoilage, from the underlying iron by tin layer. Iron is used in bridges and automobiles to provide strength. However, iron tends to corrode and rust, so zinc is plated on to iron protect it from corrosion and the formation of rust.

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