how nonmetals are useful to us...
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Copper is used for making electrical wires, cooking utensils, etc. Zinc is mainly used as a protective coating for iron. Aluminium is used for making electrical cables, packaging, cooking utensils, etc. Non-metals: Hydrogen is used for the synthesis of ammonia and methyl alcohol, in welding torches, etc.
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non metals like wood, plastic are very useful to us because chair , table, etc are made of non-metals .
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