An iron pipe coated with which of the following metals is called a galvanized pipe?
(a) silver
(b) copper
(c) chromium
(d) zinc

During galvanisation, iron metal is given a thin coating of one of the following metals. This metal is:
(a) chromium (b) tin (c) zinc (d) copper

Which of the following metals should be electroplated on a tiffin box made of steel ?
(a) copper
(b) chromium
(c) silver
(d) tin