Advertisements
Advertisements
प्रश्न
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
उत्तर
Reaction at Cathode :
H+ + e- → H
H + H → H2
or 4H+ + 4e- → 2H2
Reaction at anode :
20H- - 2e- → H2O + O
or 4OH- - 4e- → 4OH
APPEARS IN
संबंधित प्रश्न
Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of Acidified copper sulphate solution with copper electrodes
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:
very dilute sulphuric acid.
State the electrode reaction at the anode during electrolysis of:
Fused lead bromide.
Write the difference between with examples:
A strong electrolyte and a weak electrolyte
Explain electrolysis of lead bromide.
Fill in the black.
The metal plate trough which current enters into an electrolyte is called ___________. It has ____________ of electrons.
Choose the correct answer from the option given below:
Which one is weak electrolyte?
Define or explain the term: Electrolysis.
Give reason for the following:
Potassium is not extracted by electrolysis of its aqueous salt solution.