Advertisements
Advertisements
Question
Give reasons why In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.
Advertisements
Solution
If silver nitrate solution is used directly instead of double cyanide of silver and sodium, the deposition of silver will be very fast and hence not very smooth and uniform.
APPEARS IN
RELATED QUESTIONS
Identify the substance underlined, in the following case
The electrolyte used for electroplating an article with silver.
Name the following :
The process of coating of iron with zinc
Copy and complete the following table:
| Anode | Electrolyte | |
| Purification of copper |
An electrolytic cell is set up using two platinum electrodes and an aqueous solution of copper (II) sulphate,
(a)draw a labelled diagram of the electrolytic cell,
(b)Name the ions present in the cell,
(c)Name the ions migrating towards the anode,
(d)Name the ions migrating towards the cathode,
(e)Name the ions which will not be discharged at electrodes during electrolysis,
(f)Write the reaction at the cathode,
(g)Write the reaction at the anode,
(h)Name the spectator ion in the solution.
Give three applications of electrolysis.
Explain the term:
Electro refining
The following question relate to the electroplating of an article with silver.
Name the electrode formed by the article which is to be plated.
Copy and complete the following table :
| Anode | Electrolyte | |
| Purification of copper |
Which solution is preferred as electrolyte, CuSO4 or FeSO4?
What ions must be present in a solution used for electroplating a particular metal?
