AIPMT 2002 Physics and Chemistry Paper

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Question : 69 of 100

Marks: +1, -0

In electrolysis of NaCl when Pt electrode is taken then H2 is liberated at cathode while with Hg cathode it forms sodium amalgam : -

Hg is more inert than Pt
More voltage is required to reduce H+at Hg than at Pt
Na is dissolved in Hg while it does not dissolve in Pt
Conc. of H+ions is larger when Pt electrode is taken

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