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प्रश्न
Explain, why electrolysis is an example of redox reaction?
उत्तर
Redox reaction is one in which oxidation and reduction occurs simultaneously.
Similarly in case of electrolysis :
At cathode : The cations gain electron and become neutral. As the electrons are gained the ion is said to be reduced.
At anode : The anions lose electron to form neutral. As the electrons are lost the ion is said to be oxidized.
Hence in electrolysis also the oxidation and reduction occurs hence it is an example of redox reaction.
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संबंधित प्रश्न
Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of Molten lead bromide with inert electrodes
Write the equation taking place at the anode
Powdered sodium chloride (common salt) does not conduct an electric current, but it does so when ______ or when ______.
State the electrode reaction at the anode during electrolysis of:
Fused lead bromide.
To carry out the so-called “electrolysis of water”. Sulphuric acid is added to water. How does the addition of sulpuric acid produce a conducting solution?
From the given list :
NaCl, NaOH, H2O (pure), NH4OH, urea, dil.H2SO4, glucose, acetic acid, H2CO3.
Select :
a) Substances which will behave as strong electrolytes.
b) Substances which will behave as weak electrolytes.
c) Substances which are non-elctrolytes.
Name : A positively charged not metallic ion
Give one example of a substance which contain :
both ions and molecules.
Complete the sentence by choosing correct words given in brackets.
Electrolysis is the passage of __________ (electricity/electrons) through a liquid or solution accompanied by a __________ ( physical/chemical ) change.
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
