What are Chemical Effects of Electric Current?
The passage of an electric current through a conducting liquid causes Chemical reactions. As a result of the chemical reaction:
Bubbles of a gas may be formed on the electrodes
Deposits of metal can be seen on electrodes
Changes of colour of solutions may occur
All the above changes or the reaction will depend on what solution & electrodes are used. It is also interesting to note here, that chemical reactions can be seen taking place in vegetables & fruits like if we insert copper wire into potato, we find that the wire connected to the positive terminal has a greenish blue spot around it.