Question

22. In acidic environment the electrochemical corrosion occurs with the replacement of H* ion by the metal------
A. Fe
B. Cu
C. Fe and Cu
D. None of the above​

Answer 1

Answer:

sorry

Explanation:

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Answer 2

Ferrous and Copper

Explanation:

• The electrochemical corrosion occurs with the replacement of hydrogen ion by the metal Fe and Cu in acidic environment.
• For example, in the corrosion of iron metal, the anode type of reaction is dissolution of Fe as ferrous ions with liberation of electrons.
• The electrons flow through the metal from anode to cathode that is acidic region where H+ ions are eliminated as H2 gas.
• Displacement of hydrogen ions from the acidic solution by metal ions caused in this type of reaction.
• The tendency to get dissolved in acidic solution with simultaneous evolution of hydrogen, is seen in all metals above hydrogen in the electrochemical series.