What is chemical effect of electric current? Describe it briefly?
When an electric current is passed through a conducting solution, some chemical reaction takes place in the solution. This is among the chemical effects of electric current. For example, when some current is passed through water, water ionizes into H+ (aq) and OH– (aq) ions, where H+ (aq) ions go towards the cathode to gain electrons and form H2 whereas OH– (aq) ions go towards the anode to lose electrons and form O2 molecules. Some of the chemical effects of electric current are bubbles of gas may be formed at electrodes, deposits of metal may be seen on electrodes, changes of the colour of the solution may occur.
So electrical energy can be used to produce chemical reactions. The best example for this is electrolysis. When an electrical current flows through a chemical compounds such as those found in sodium chloride solution or copper sulphate solution, the chemical compounds decompose into ions.
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