Multiple choice

Which of the following statements is correct?

  1. The reference calomel electrode is made from HgCl2.

  2. Electrolysis involves oxidation and reduction at cathode and anode respectively.

  3. The standard electrode potential is measured by galvanometer.

  4. If a salt bridge is removed between the two half cells, the voltage will drop to zero.

  5. In electroplating, the article to be electroplated serves as a cathode.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This statement is correct. If a salt bridge is removed between the two half cells, the voltage will drop to zero.

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