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प्रश्न
Define the term : Electrolysis
उत्तर
Electrolysis :
It is the process of decomposition of the electrolyte in the molten or aqueous state by discharge of ions at the elctrodes on passage of an electric current.
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संबंधित प्रश्न
Define the following term:
Electrolysis
Give reason for the following:
Carbon tetrachloride is a liquid but does not conduct electricity.
(a) Copy and complete the following table, which refers to two practical applications of electrolysis.
| Anode | Electrolyte | Cathode | |
| (i) Silver plating of a spoon | A solution of potassium argentocyanide | ||
| (ii) Purification of copper | |||
| (iii) Extraction of sodium |
(b) Write the equation taking place at the anode for Q. (a).
State your observation for the following electrolytic reaction
Aqueous copper sulphate is electrolysed between platinum electrodes.
Give one example of a substance which contain :
molecules only
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
Identify the following reactions as either oxidation or reduction : K - e- → K+
During the electrolysis of molten lead bromide, which of the following takes place?
State your observation of the following case:
At the cathode when acidified aqueous copper sulphate solution is electrolyzed with copper electrodes.
When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are:
