Na-amalgam is prepared by electrolysis of `NaCl` solution using liquid Hg as cathode.
Channel: Doubtnut
Date: 2020-01-26

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