Chemistry
Copper sulphate solution is electrolysed using a platinum cathode and carbon anode. Study the diagram given below and answer the following questions:
(a) Give the names of the electrodes A and B.
(b) Which electrode is the oxidising electrode?
Related Questions
A solution of caustic soda (NaOH) in water or when fused, conducts an electric current. What is the similarity in these two cases?
During electrolysis of an aqueous solution of sulphuric acid between platinum electrodes, two types of anions migrate towards the anode but only one of them is discharged.
(a) Name the two anions.
(b) Name the main product of the discharge of anion at the anode and write the anode reaction.
(c) Name the product at the cathode and write the reaction.
(d) Do you notice any change in colour? State why?
(e) Why this electrolysis is considered as an example of catalysis?
Explain the following :
A solution of cane sugar does not conduct electricity, but a solution of sodium chloride is a good conductor.
Explain the following :
Hydrochloric acid is a good conductor of electricity.