Question

What will be the products of electrolysis of $AgNO_{3}$solution in water with platinum electrodes?

• A. Ag is liberated at cathode and Ag is deposited in anode.
• B. Ag is liberated at cathode and $O_{2}$is liberated at anode.
• C. Ag is liberated at anode and water is liberated at cathode.
• D. Ag is liberated at cathode and silver oxide is liberated at anode.

Answer 1

Answer: (B)

Ag is liberated at cathode and $O_{2}$is liberated at anode.

Answer 2

: When electrolysis of $AgNO_{3}$solution is carried out using platinum electrodes, oxidation of water occurs at anode since Pt being a noble metal does not undergo oxidation easily. As a result, $O_{2}$is liberated at the anode.