During electroplating, the metal gets deposited on the anode or the cathode?

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Solution

During electroplating, metal gets deposited on cathode because the metal ions from cathode moves towards anode which is a positive electrode.

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Q. Question 24
During electrolytic refining of zinc, it gets:
(a) deposited on cathode.
(b) deposited on anode.
(c) deposited on cathode as well as anode.
(d) remains in the solution.

During electroplating of nickel on a substance, AQUEOUS NiSO_{4 is taken as electrolyte}and current is passed . According to our book, the Ni²⁺ ions migrate to the cathode and take 2 electrons forming Ni metal on the cathode . Also, the Ni anode get decomposed as Ni²⁺ ions.

But, at the cathode, H+ ions must go and undergo reduction by gaining ions because H+ is lower than Ni2+ in the electrochemical series and H+ can gain electrons more readily because of its small atomic size. Then why Ni+2 ions go to cathode and undergo reduction?

Or should MOLTEN NiSO4 be taken as an electrolyte for electroplating of Nickel on a metal so that there are no H⁺ ions in the electrolyte and only Ni²⁺ ions go at cathode and get deposited on the metal ?

State True or False.

The mass of a substance deposited on the cathode or anode during electrolysis is given by w =

\frac{E i t}{F}

Q. Assertion :In electrolyte refining of metal, impure metal is made cathode while a strip of pure metal is used as anode. Reason: The pure metal gets deposited at anode as anode mud.

Which of the following is/are correct processes that take place at cathode and anode during electroplating?

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