Question

Passage of one ampere current through 0.1 M Ni(NO3)2 solution using Ni electrodes bring in the concentration of solution to _________ in 60 seconds. (1) 0.1 M (2) 0.05 M (3) 0.2 M (4) 0.025 M​

Answer 1

Answer:

option 1 is correct

The reaction taking place at the electrodes are

Anode:Ni→$Ni^{2+} +2e$

Cathode:$Ni^{2+} +2e^{-}$→Ni

concentration  of $Ni^{2+}$ is 0.1M