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प्रश्न
Give reason for the following:
A graphite anode is preferred to other inert electrodes during the electrolysis of fused lead bromide.
उत्तर
Graphite is unaffected by the bromine vapours.
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संबंधित प्रश्न
Explain why it is preferable to use a number of graphite electrodes as the anode instead of a single electrode, during the above electrolysis.
Give reason for the following:
Electrolysis of molten lead bromide is considered to be a reaction in which oxidation and reduction go side by side, i.e., a redox reaction.
Give reason for the following:
Lead bromide undergoes electrolytic dissociation in the molten state but is a non-electrolyte in the solid state.
Write down the changes that will be seen in each instance and explain the reason behind them.
Dilute H2SO4 was taken in an electrolytic cell and an electric current was passed through it.
Choose the correct answer from the option given below:
In electrolysis of molten lead bromine anode is made up of
Give one example of a substance which contain :
Ions 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+
State your observation of the following case:
At the cathode when acidified aqueous copper sulphate solution is electrolyzed with copper electrodes.
We can expect that pure water ______ normally conducts electricity.
