JEE Main Chemistry question

The protective film of oxide on the surface of Al metal may be strengthened by:

(A)Galvanizing
(B)Cathodizing
(C)Sheradizing
(D)AnodizingCorrect

Answer: (D)

Solution

Anodizing is an electrolytic passivation process in which aluminium is made the anode, so that the naturally occurring oxide layer is deliberately thickened and strengthened.

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Question ID VK-138482