Question

Explain galvanic corrosion

Answer 1

Galvanic corrosion is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte. A similar galvanic reaction is exploited in primary cells to generate a useful electrical voltage to power portable devices.

Answer 2

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Here's your answer-

Galvanic corossion refers to corossion that occureswhen two different metalsare in electrical contact in an electrolyte ,where the more nobel metalis protected and the more active metal tends to corrode.
Galvanic corossion also be known as bimetallic corossion or dissimilar metal corrosion.

For galvanic corrosion to occur, three conditions must be present:

*Electrochemically dissimilar metals must be present,

*The metals must be in electrical contact,

*The metals must be exposed to an electrolyte.

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