JEE Advanced Chemistry question

To protect iron against corrosion, the most durable metal plating on it, is

(A)Nickel plating
(B)Tin plating
(C)Copper plating
(D)Zinc platingCorrect

Answer: (D)

Solution

Zinc plating (galvanisation) is the most durable and widely used protective coating for iron: not only does zinc form a protective oxide/carbonate layer, but being more reactive than iron, it also provides sacrificial (cathodic)

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-159670