When a current of (0.5 ~A ) is passed for 2 hours through a molten metal salt, (3.88 ~g ) of the metal was deposited. If atomic mass of the metals is 208 units, the oxidation state of the metal in the salt is

Step-by-step solution

( aligned & w= E i t F = A n i t F & n= A i t w F = 208 0.5 (2 3600) 3.88 96500 =1.999 2 & [ A= atomic mass of the metal =208 unit & i= current =0.5 ~A & t= time =2 hrs =2 3600 ~s & E= A n = Equivalent mass of the metal & n= valency of the metal in the salt aligned ) ( So, oxidation state of the metal in the salt =+2] . )