(ii) Identify the process shown in the give
in the given diagram and give answers of the
following sub-questions :
(a) Which process will you study with the diagram?
(b) Define the process.
(C) Explain the process in brief.
(d) Write the anode and cathode reactions.
Answers
Answer:
1) Electrolytic refining
b) when sodium , mg ,ag, ca. al, have more affinity for oxygen than carbon. these metal can obtained by this process
Answer:
(a) Which process will you study with the diagram?
Ans:- Electroplating.
(b) Define the process.
Ans:- The process in which a less reactive metal is coated on a more reactive metal by electrolysis is called Electroplating.
Eg. Silver-plated spoon, gold-plated jewellery.
(c) Explain the process in brief.
Ans:- 1) The electroplating process uses an anode and a cathode.
2) In electroplating, the metal dissolved from the anode can be plated onto the cathode.
3) The anode is provided with direct current, oxidizing and dissolving its metal atoms in the electrolyte solution.
4) At the cathode, the dissolved metal ions are decreased and the metal is placed on the product.
(d) Write the anode and cathode reactions.
Ans:- Anode: Cu(s) → Cu2+(aq) + 2 e-
Cathode: Cu2+(aq) + 2 e- → Cu(s)