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प्रश्न
Write two applications of electrolysis in which the anode diminishes in mass.
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उत्तर
- Electroplating of metals
- Electrorefining of metals
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संबंधित प्रश्न
Identify the substance underlined, in the following case
The electrolyte used for electroplating an article with silver.
Name the metallic ions that should be present in the electrolyte when an article made of copper is to be electroplated with silver.
Give reasons why In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.
State one relevant observation for the following:
At the anode when aqueous copper sulphate solution is electrolysed using copper electrodes.
Give reason for the following:
For electroplating with silver, silver nitrate is not used as an electrolyte.
Explain the term:
Electro refining
How is impure copper purified by electrolysis ? Explain.
Mr Ramu wants electrolyte his key chain with nickel to prevent rusting. For this electroplating
(i) Name the electrolyte
(ii) Name the cathode
(iii) Name the anode
(iv) Give the reaction at the cathode
(v) Give the reaction at the anode
Draw a labelled diagram to show how iron is electroplated with copper.
What ions must be present in a solution used for electroplating a particular metal?
