Question

A current of 2 amp when passed for 5 hours through a molten salt deposits 22.2 g of metal of atomic mass 177. The oxidation state of the metal in the metal salt is

Answer 1

Answer:

Correct option is

C

+3

Weight= FE×i×t=n−factor×FMit   ∣E=n−factorM

⇒22.2=n−factor×96500177×5×2×60×60

∴n−factor=2.97≃3

Hence oxidation state of metal= +3