Which of the substances Na,Hg,S,Pt and graphi | vedclass

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(C) In electrolytic cells,the electrodes must be chemically inert so that they do not react with the electrolyte or the products of electrolysis. $Na$

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$Pt$ and graphite only

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(C) In electrolytic cells,the electrodes must be chemically inert so that they do not react with the electrolyte or the products of electrolysis. $Na$ is a highly reactive alkali metal that reacts vigorously with water. $S$ (sulfur) is a non-metal and a poor conductor of electricity. $Hg$ (mercury) is a liquid metal and can be used as an electrode in specific cases (like the Castner-Kellner cell),but $Pt$ (platinum) and graphite are the standard inert electrodes used in aqueous electrolytic cells because they are chemically stable and conduct electricity well. Therefore,$Pt$ and graphite are the most suitable choices for general electrolytic cells.

Which of the substances $Na$,$Hg$,$S$,$Pt$ and graphite can be used as electrodes in electrolytic cells having aqueous solutions?

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