Question

Choose the correct answer from the options given below:

The electrolyte used for electroplating an article with silver is :

• A. Sodium Nitrate solution
• B. Sodium Cyanide solution
• C. Sodium Argentocyanide solution
• D. Nickel Sulphate solution

Answer 1

The correct option is C

Sodium Argentocyanide solution

• Electroplating is the process by which a sheet of metal is acquired on the other metal surface.

Explanation for the correct option:

(c) Sodium Argentocyanide solution

During the electroplating of Silver$\left(Ag\right)$, Sodium Argentocyanide$NaAg{\left(CN\right)}_2$is used as an electrolyte.

Explanation for the incorrect option:

(a) Sodium Nitrate solution

It is not used as an electrolyte as the movement of Silver $\left(A{g}^{+}\right)$ions is fast in this solution which will make the plating uneven. So, this is the incorrect option.

(b) Sodium Cyanide solution

It is not used as an electrolyte as the movement of Silver $\left(A{g}^{+}\right)$ions is fast in this solution which will make the plating uneven. So, this is the incorrect option.

(d) Nickel Sulphate solution

It is not used as an electrolyte for electroplating objects of Silver as it will not allow the movement of Silver $\left(A{g}^{+}\right)$in the solution.

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The electrolyte used for electroplating an article with silver is Sodium Argentocyanide solution.