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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.
Give reasons why In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.
Copy and complete the following table:
| Anode | Electrolyte | |
| Purification of copper |
Choose the correct answer from the options given below:
The electrolyte used for electroplating an article with silver is
A. Silver nitrate solution
B. Silver cyanide solution
C. Sodium argentocyanide solution
D. Nickel sulfate 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.
Describe what happens to the iron object and the copper rod.
Write two applications of electrolysis in which the anode diminishes in mass.
What ions must be present in a solution used for electroplating a particular metal?
