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Which of the substances Na, Hg, S, Pt an...

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

A

Na, Pt and graphite

B

Hg,pt and graphite

C

Pt and graphite only

D

Na and S only

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The correct Answer is:
C
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  12. The sequence of the ionic mobility in the aqueous solution is

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  13. Which of the following electrolytic solutions has the least specific ...

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  14. The highest electrical conductivity of the following aqueous solutions...

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