Give two reasons for electroplating an article.

'Iron is electroplated with silver' - state two reason for electroplating

A soln. of Ag NO_(3) is a good electrolyte but is not used for electroplating an article with silver. Why

The electrolyte used for electroplating an article with silver is :

Identify the substance underlined, in the following case : The electrolyte used for electroplating an article with silver

Give reason : For electroplating with silver, silver nitrate is not used as electrolyte.

Draw a diagram for i] electroplating an article with silver ii] electrorefining or purification of copper.

Give reasons why : In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.

State the i] electrolyte ii] cathode used iii] anode used iv] electrode reaction at cathode v] electrode reaction at anode iv] product at cathode and anode - during a] electroplating an article with nickel b] electroplating a spoon with silver c] purification of impure copper.

Give two reasons for the appearance of variations among the progeny formed by sexual reproduction.