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List of top Chemistry Questions on Electrochemistry asked in ICSE Class X board

The diagram given below shows the electroplating of a spoon with silver. With reference to the diagram, answer the following questions. 
(a) Write an equation for the reaction that occurs at the cathode. 
(b) Silver nitrate solution is not preferred as an electrolyte in the above process. Give a reason. 
(c) Why is alternating current not used in the process? 
(d) What is the observation at the anode? 


 

  • ICSE Class X board - 2026
  • ICSE Class X board
  • Chemistry
  • Electrochemistry
The reaction that takes place at the negative electrode (cathode) in the electrolysis of molten aluminium oxide is:
(Al^3+ + 3e^- Al)
(2O^2- O_2 + 4e^-)
(C + O_2 CO_2)
(Al_2O_3 2Al^3+ + 3O^2-)
  • ICSE Class X board - 2026
  • ICSE Class X board
  • Chemistry
  • Electrochemistry
Assertion (A): In the electrolysis of acidified water, the volume of hydrogen liberated is twice the volume of oxygen formed.
Reason (R): Water has hydrogen and oxygen in the ratio of 1:2 by volume.
  • ICSE Class X board - 2026
  • ICSE Class X board
  • Chemistry
  • Electrochemistry
With respect to the electrolysis of copper (II) sulphate solution using copper electrodes, which statement is correct?
  • ICSE Class X board - 2026
  • ICSE Class X board
  • Chemistry
  • Electrochemistry
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