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प्रश्न
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).
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उत्तर
(a) X → X2+ + 2e-
Y + 3e- → Y3-
(b) 3X + Y2 → X3Y2
(c) (i) Electroplating of metals
(ii) Electrorefining of metals
(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 cathode Y at the anode of the electrolytic cell.
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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.
Copy and complete the following table:
| Anode | Electrolyte | |
| Purification of copper |
How would you change Cu2+ ion to Cu?
Give reason for the following:
For electroplating with silver, silver nitrate is not used as an electrolyte.
The following question relate to the electroplating of an article with silver.
What should be the nature of the anode?
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
The electrolyte used for electroplating an article with silver is ______.
Copy and complete the following table :
| Anode | Electrolyte | |
| Purification of copper |
What ions must be present in a solution used for electroplating a particular metal?
