Question on: SS1 Chemistry - Redox Reactions

What is the process of cathodic protection used for?

 

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A

Preventing corrosion by creating a physical barrier on the metal surface

 

B

Applying a protective coating to metal surfaces

 

C

Connecting a less reactive metal to the metal being protected

 

D

Supplying a direct electrical current to the metal being protected

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Correct Option: D

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