Multiple choice

Which of the following statements is incorrect regarding galvanic series?

  1. It predicts the corrosive tendencies of metals and alloys.

  2. Standard hydrogen electrode is used as a reference electrode.

  3. Positioning of metals and alloys can change.

  4. Oxidation potential of metals is arranged in decreasing order of activity of a series of metal.
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B Correct answer
Explanation

Calomel electrode is used as a reference electrode for devising galvanic series.

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