Multiple choice

Which of the following statements is true?

  1. The reference calomel electrode is made from HgCl2.

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

  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 cathode.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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

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