Which of the substances \[Na,\,\,Hg,\,\,S,\,\,Pt\] and graphite can be used as electrodes in electrolytic cells having aqueous solutions [AIIMS 1982]

Which of the substances \[Na,\,\,Hg,\,\,S,\,\,Pt\] and graphite can be

1.	Which of the substances \[Na,\,\,Hg,\,\,S,\,\,Pt\] and graphite can be used as electrodes in electrolytic cells having aqueous solutions [AIIMS 1982]
A.	\[Na,\,\,Pt\]and graphite
B.	\[Na\]and \[Hg\]
C.	\[Pt\]and graphite only
D.	\[Na\]and \[Al\]only
Answer» D. \[Na\]and \[Al\]only

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Which of the substances \[Na,\,\,Hg,\,\,S,\,\,Pt\] and graphite can be used as electrodes in electrolytic cells having aqueous solutions [AIIMS 1982]

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