Chemical effect of Electric Current:
When electric current flows through any good conductor solution then it creates an effect in that solution; for example.Take out two carbon rods from unused cells. Clean their caps with sand paper and wind copper wire on them and connect with battery. These two rods are called electrodes, plate connected with positive (+ve) terminal is called anode and (-ve) terminal with which plate is attached is called cathode. The two lines, bigger represents (+ve) terminal and smaller (-ve) terminal. Dip these two terminals either in lemon juice or sodium chloride solution in a plastic container or in a glass. Take precaution-that caps of both the terminals should be out of solution, wait for 3-4 minutes and observe the electrodes. We see that bubbles come out and plates are coated with ions. It happens due to chemical reactions took place due to flow of electricity in the solution, colour of solution can be changed, but these reactions depend upon metal of electrodes and solutions. These are called chemical effect of electric current on chemicals.
