Electricity from a power station passes through overhead cables to a substation and then to a school where it is used to electrolyse concentrated hydrochloric acid using inert electrodes.
Which substances are used for the overhead cables and for the electrodes?
1 )
overhead cables: aluminium / electrodes: copper
overhead cables: aluminium / electrodes: platinum
3 )
overhead cables: copper / electrodes: platinum
4 )
overhead cables: platinum / electrodes: aluminium
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