Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Cd amalgam is prepared by electrolysis of a solution of CdCl 2 using a mercury cathode. How long should a current of 5A be passed in order to prepare 12% Cd-Hg amalgam when 2 g Hg is used as cathode (atomic weight of Cd = 112.4)
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
t = 93.65 sec.
Sol. Cd 2+ + 2e — 
Cd.
Cd required for 2g of Hg = 
= 0.2727 g.
t = 
= 93.65 Sec.
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