(a) 2014 (d) 8.56 V (2003) (c) 6.42 V To electrolysis of NaCl when Pt electrode taken then His liberated at cathode while Hg cathode it forms sodium amalgam (a) Hg is more inert than Pt Ab) More voltage is required to reduce H. Hg than at Pt (c) Na is dissolved in Hg while it does not dissolve in Pt (d) Conc. of Hions is larger when Pt electrode is taken. (2002)