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प्रश्न
Give three applications of electrolysis.
Write applications of electrolysis.
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उत्तर
Three applications of electrolysis are :
- Electroplating with metals
- Electrorefining of metals
- Extraction of metals
संबंधित प्रश्न
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:
The blue colour of aqueous copper sulphate fades when it is electrolysed using platinum electrodes.
How is impure copper purified by electrolysis ? Explain.
The following question relate to the electroplating of an article with silver.
Name the electrode formed by the article which is to be plated.
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.
A solution of silver nitrate is a good electrolyte but is not used for electroplating an article with silver.
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 ______.
Which solution is preferred as electrolyte, CuSO4 or FeSO4?
Describe what happens to the iron object and the copper rod.
