In the complex `[Fe(H_(2)O)_(5)CI]Br`, identify
(a) Ligands and their charges
(b) Charge of the central ion in the complex
(c ) What-would happen if Ag `NO_(3)` is added to the compound at `0^(@)C` .

Explanation

In complex `[Fe(H_(2)O)_(5)CI]Br` , the complex ion is
`[Fe (H_(2)O)_(5)CI]^(o+)`
(a ) Ligands are `5H_(2)O ` and `CI^(o+)`
`H_(2)O)` is neutral ligand whereas`CI^(o+)` has one negative charge
(b ) Let the charge on the central ion in the complex be x
`x + 0 xx 5 + (-1) = + 1`
`x = +2`
charge on Fe in `[Fe(H_(2)O)_(5)CI]^(o+)is + 2`
(C ) `[Fe (H_(2)O)_(5)CI]Br + Ag NO_(3)rarr [Fe (H_(2)O)_(5)Ci]NO_(3)+Ag Br`
On addition of `AgNO_(3)` to the compound one mole of Ag Br will be precipitated .