Question

34. An article is to be plated with silver. ) The Electrolyte used is :- AgNO, b) b) AgCI c) NaſAg(CN):) d) Ag: ii) The cathode is: a) Pure silver b) Article c) Impure silver d) None iii) The anode used is : a) Pure silver b) Impure Nver c) Article d) None of thes iv) The electrolyte is acidified with a) Dilute Sulphuric Acid bi Conc. Sulphuric Acid c) Hydrocyanic Acid d) Hydroiodic Acid V For the best deposit the current used should be of : High voltage b) Low voltage c) Alternate current d) None of these​

Answer 1

Answer:

sodium argentocyanide solution

Electroplating is the electrolytic process of deposition of a superior metal on the surface of a base metal or article.

An aqueous solution of sodium argentocyanide is used for the electrolysis of silver as the migration of Ag

+

ions is slow in this solution as compared to AgNO

3

. Hence an even deposition of the silver metal is obtained on the article.