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WHAT DO YOU KNOW BY THE TERM CHEMICAL EFFECTS OF ELECTRIC CURRENT? |
A liquid which conducts electric current and at the same time undergoes a chemical change is due to chemical effect of electric current . Example : When electric current is passed through water,hydrogen H+ ions are attracted towards negatively charged terminal and they gain electric charges to form neutral hydrogen atoms .The hydrogen atoms then join to form hydrogen molecules . Conversely ,on the passage of electric current ,hydroxyl ions are attracted towards positively charged terminal.Here they lose electric charges to form neutral hydroxyl ions ,which unite to form oxygen gas . |