Q.

What is anodising?


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a

Electrolytic passivation

b

Electrorefining

c

Electrolytic process

d

None of the above 

answer is A.

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Detailed Solution

Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated forms the anode electrode of an electrolytic cell.
 
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