(ii) Electrical wires are made up of copper wires.(iii) Graphite is a non-metal but still used in batteries.(iv) Stainless steel do not rust even if it is contains iron.(v) Sodium Potassium are not kept in open air.plzlplzp plzpl plzplz the correct answer is needed.
(ii) Electrical wires are made up of copper wires. copper is a good conductor of electricity (iii) Graphite is a non-metal but still used in batteries. graphite is a non metalthat is a good electrical conductor. (iv) Stainless steel do not rust even if it is contains iron. It is alloyed with chromium and nickel to prevent rusting. (v) Sodium Potassium are not kept in open air. They both react the air, particularly moisture and carbon dioxide, also oxygen. When cut, you can see the surface tarnish in air.
