:: Identify the process shown in the given diagram and give and
the given diagram and give answers of the
following sub-questions :
me
Cell
nane
NO
ne
Anode
silver
plate
Cathode
Aluminium
Spoon
ane
ne
7:
(a) Which process will you study with the diagram? Electroplating
(b) Define the process.
(c) Explain the process in brief.
(d) Write the anode and cathode reactions.
2) the process in which a vess reactive met
coated on a more reactive metal by ella
Answers
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)