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प्रश्न
Out of Cu and Ag, which is more active?
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उत्तर
Copper is more active than Ag.
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संबंधित प्रश्न
Name the metallic ions that should be present in the electrolyte when an article made of copper is to be electroplated with silver.
Give one word or phrase for the following:
Electrolytic deposition of a superior metal on a baser metal.
Give three applications of electrolysis.
The following question relate to the electroplating of an article with silver.
What should be the nature of the anode?
Element X is a metal with valency 2. Element Y is a non-metal with valency 3.
(a) Write equations to show how X and Y form ions.
(b) If Y is diatomic gas, write the equation for the direct combination of X and Y to form a compound.
(c) Write two applications of electrolysis in which anode diminish in mass.
(d) If the compound formed between X and Y is melted and an electric current passed through the molten compound, the element X will be obtained at the _____ and the Y at the ________of the electrolytic cell. (Provide the missing words).
A solution of silver nitrate is a good electrolyte but is not used for electroplating an article with silver.
The electrolyte used for electroplating an article with silver is ______.
Copy and complete the following table :
| Anode | Electrolyte | |
| Purification of copper |
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?
