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प्रश्न
What ions must be present in a solution used for electroplating a particular metal?
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उत्तर
The electrolyte used for this purpose must contain the metal ions that will be electroplated in the article.
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 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 one word or phrase for the following:
Electrolytic deposition of a superior metal on a baser metal.
State the electrode reaction at the anode during electrolysis of:
Aqueous copper sulphate solution.
Give three applications of electrolysis.
How is impure copper purified by electrolysis ? Explain.
The following questions are about electroplating of copper wire with silver.
(a) What ions must be present in the electrolyte?
(b) Of what substance must the anode be made up of?
(c) What will the cathode be made up of?
(d) Write the equation for the reaction which takes place at the cathode.
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).
Draw a labelled diagram to show how iron is electroplated with copper.
