Na-amalgam is prepared by electrolysis of `NaCl` solution using liquid Hg as cathode. H
Channel: Doubtnut
Date: 2020-04-12

Na-amalgam is prepared by electrolysis of `NaCl` solution using liquid Hg as cathode. How long should the current of 10 amp. Is passed to produce `10%` Na-Hg on a cathode of 10 gm Hg. (atomic mass of `Na=23`).   (A). 7.77 min   (B).  9.44 min.   (C). 5.24 min.   (D). 11.39 min