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Electrolysis and Electrolytes

Select the co...

Question

Select the correct answer from the list given in brackets:
During silver plating of an article using potassium argentocyanide as an electrolyte, the anode material should be.
$[C u, A g, P t, F e]$

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Solution

The anode is made up of the metal to be plated on the article. Hence here it is made up of $A g$ . Cathode is made up of the article to be electroplated.

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Q. Which of the following reaction taken place at anode during electroplating of metal with silver using sodium argentocyanide as an electrolyte?

Q. A metal article is to be electroplated with silver. The electrolyte selected is sodium argentocyanide.
(a) What kind of salt is sodium argentocyanide?
(b) Why is it preferred to silver nitrate as an electrolyte?
(c) State one condition to ensure that the deposit is smooth, firm and long lasting.
(d) Write the reaction taking place at the cathode.
(e) Write the reaction taking place at the anode.

Q. Select the correct answer from the list given in brackets:
The metallic electrode which does not take part in an electrolytic reaction.

[C u, A g, P t, N i]

Q. The following questions relate to the electroplating of an article with silver.
(a) Name the electrode formed by the article which is to be plated.
(b) What ions must be present in the electrolyte?
(c) What should be the nature of the anode?

Q. By selecting electrolyte as sodium argentocyanide for electroplating of the metal article with silver. Which of the following condition ensures that deposit is smooth, firm and long-lasting?

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