Chemistry · Electrochemistry
During electroplating, the metal anode used to plate an article needs to be periodically replaced because:
- 1impurities keep getting deposited on the metal used for plating
- 2the metal used for plating becomes ineffective after some time
- 3a very small bar of the metal needs to be taken for smooth and even plating
- 4the metal continuously dissolves as ions into the conducting solution✓
Correct answer
the metal continuously dissolves as ions into the conducting solution
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