Advertisements
Advertisements
प्रश्न
State the observations at the anode and at the cathode during the electrolysis of copper sulphate solution using copper electrodes.
उत्तर
Observations:
Anode: Nothing gets deposited on the anode because the copper anode dissolves during the reaction as Cu2+ ions are formed
Cathode: Reddish brown Cu is deposited.
APPEARS IN
संबंधित प्रश्न
State the observations at the anode and at the cathode during the electrolysis of fused lead bromide using graphite electrodes
State your observation At the cathode, when acidified aqueous copper sulphate solution is electrolysed with copper electrodes.
Explain the following:
Hydrochloric acid is a good conductor of electricity.
Choosing only words from the following list, write down the appropriate words to fill in the blanks (a) to (e) below:
anions, anode, cathode, cations, electrode, electrolyte, nickel, voltameter.
The electroplating of an article with nickel requires an (a) ______ which must be a solution containing (b) ______ ions. The article to be plated is placed as the (c) ______ of the cell in which the plating is carried out. The (d) ______ of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e) ______.
Write the difference between with examples:
Electrolytic dissociation and ionization
How is the passage of electricity through an electrolyte different from the passage of electricity through a copper wire?
The following Question refer to the electrolysis of copper sulphate solution with copper electrodes:
(a) Compare the change in mass of the anode
(b) What is seen to happen to the colour of the copper sulphate solution if platinum electrodes are used? Explain the observation.
(c) What is the practical application of the electrolysis of copper sulphate solution? Briefly, describe one such application.
Which of these will act as a non-electrolyte?
When fused lead bromide is electrolyzed we observe
Name the metallic ions that should be present in the electrolyte when an article made copper is to be electroplated with silver
