Answer:
Chemical effects of electric current can be explained by following experiment: (i) Take two carbon rods with metal caps. Clean their metal caps.
(ii) Wrap copper wires around the metal caps of the carbon rods and join them to a battery.
(iii) Pour a full cup of water in a glass bowl and add a teaspoon of salt.
(iv) Immerse the electrodes in solution but metal caps should be out of the water,
(v) Wait for 5 min.
(vi) Observe the electrodes,
(vii) The passage of electric current through a conducting solution causes chemical reaction. As a result, bubbles of gas are formed near the electrodes. Deposits of metal may be seen on electrodes. Change of colour of solution may occur. These are some of the chemical effects of the electric current.
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