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प्रश्न
Copper sulphate solution is electrolysed using copper electrodes.
Write the equation for the reaction occurring at the Anode electrode.
उत्तर
\[\ce{Cu -> Cu^{+2} + 2e-}\]
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संबंधित प्रश्न
Copy and complete the following table which refers to the conversion of ions to neutral particles.
| Conversion | Ionic equation | Oxidation / Reduction |
| Chloride ion to chlorine molecule | 1)_________ | 2)_________ |
| Lead (II) ion to lead | 3)_________ | 4)_________ |
Define the term : Electrolyte
Write the difference between with examples:
Electrolytic dissociation and ionization
The following Question refer to the electrolysis of copper sulphate solution with copper electrodes:
(a) Compare the change in mass of the anode
(b) What is seen to happen to the colour of the copper sulphate solution if platinum electrodes are used? Explain the observation.
(c) What is the practical application of the electrolysis of copper sulphate solution? Briefly, describe one such application.
Fill in the blank.
As we descend the electrochemical series containing cations, the tendency of the cations to get ________ at the cathode increases.
Study the diagram given alongside and answer the questions that follow :
(i) Give the names of the electrode A and B.
(ii) Which electrode is oxidizing electrode?
The following is a sketch of an electrolytic cell used in the extraction of aluminium:
- What is the substance of which the electrodes A and B are made?
- At which electrode (A or B) is aluminium formed?
- What are the two aluminium compounds in the electrolyte C?
- Why is it necessary for electrode B to be continuously replaced?
Give appropriate scientific reasons for the following statement :
Carbon tetrachloride does not conduct electricity.
Identify the substance underlined in each of the following case :
he electrolyte used for electroplating an article with silver.
Select the ion, that would get selectively discharge from the aqueous mixture of the ions listed below :
Pb2+, Ag+, Cu+
