One litre solution of `MgCl_(2)` is electrolyzed completely by passing a current of 1A for 16 min 5 sec.The ogiginal concentration of `MgCl_(2)` solution was(Atomic mass of Mg=24)

Options

A. `5xx10^(-2)M`
B. `5xx10^(-3)M`
C. `1.0xx10^(-2)`M
D. `0.5xx10^(-3)M`

Answer

B

Explanation

`Mg^(2+)+2etoMg`
`2xx96500 1mole`
965 x
X=0.005 g/1ltr