Question

Why zinc is used in galvanisation even it is more reactive than iron ?

Answer 1

This is because Since zinc is more reactive than iron,when we galvanize iron with zinc, zincreact with oxygen to form a thin layer of oxide which prevents metal to further corrosion. ... Galvanized steel isiron with a Zn coating on it to prevent corrosion. The Zn is a more reactivemetal and wants to oxidize morereadily than the Fe



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Answer 2

zinc reacts with oxygen and form a thin layer which does not allow any other meatrial to act upon it.it acts like a passive layer so we are using zinc