Which of the following does not conduct electricity?

With the help of a labelled diagram, describe briefly how an iron key can be electroplated with copper.

In an activity to check the conduction of electricity through two liquids labelled A and B by using a bulb, it is observed that the bulb glows brightly for liquid A while it glows very dimly for liquid B.

Which of the following metals should be electroplated on a tiffin box made of steel?

Which of the following metals are produced by the electrolysis of their molten compounds ?

A) Copper

B) Silver

C) Aluminium

D) Sodium