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प्रश्न
State one relevant observation for the following:
At the anode when aqueous copper sulphate solution is electrolysed using copper electrodes.
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उत्तर १
Copper anode itself ionizes to give Cu2+ ions.
\[\ce{Cu - 2e- -> Cu^{2+}}\]
उत्तर २
The anode slowly dissolves, but the colour of copper sulphate does not change. The copper anode ionises, producing Cu2+ ions that enter the CuSO4 solution. It accepts electrons to form Cu2+.
संबंधित प्रश्न
Identify the substance underlined, in the following case
The electrolyte used for electroplating an article with silver.
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
State the electrode reaction at the anode during electrolysis of:
Aqueous copper sulphate solution.
Give three applications of electrolysis.
Explain the term:
Electro refining
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 |
Describe what happens to the iron object and the copper rod.
What ions must be present in a solution used for electroplating a particular metal?
