Question

what ways chemical effects of electric current are used

Answer 1

Chemical effects of current can be used as- 
• Production of Hydrogen gas 
• Extraction of metals ( mainly aluminium , magnesium and sodium) e.g. Aluminium is extracted by the electrolysis reaction of its ore, bauxite. 
• Refining of metals such as copper and zinc 
• Electroplating of metals

Answer 2

Answer:

electroplating

electrolysis