In an aqueous solution of voume 1000 ml, the following reation reached at equilibrium
`2Ag^(+) (aq) +Cu (s) hArr Cu^(2+) (aq)+2Ag (s)`
The concentration of `Cu^(+2)` is `0.4` M at equilibrium, `3000 ml` of water now added then concentration of `Cu^(-2)` at new equilibrium is

Options

A. `0.1 M`
B. `0.4 M`
C. in between `0.1 M` to `0.4 M`
D. less than `0.1 M`

Answer

C