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Electro polishing is also referred as _________

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Electro polishing is also referred as _________

(a) Anodic polishing

(b) Cathodic polishing

(c) Electron polishing

(d) Non-ionic polishing

This question was posed to me in homework.

This interesting question is from Practical Considerations For Bioreactor Construction in chapter Reactor Engineering of Bioprocess Engineering

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Right choice is (a) Anodic polishing

Explanation: Electropolishing, also known as electrochemical polishing, anodic polishing or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece. It is used to polish, passivate, and deburr metal parts. It is often described as the reverse of electroplating.

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