A compound `(A)` is used in paints instead of salts of lead. . Compound(A) is obtained when a white compound `(B)` is strongly heated . Compound `(B)` is insoluble in water but dissolves in sodium hydroxide forming a solution of compound `(C )` the compounds `(A)` on heating with coke gives a metal `(D)` and a gas `(E)` which burns with blue flame . `(B)` also dissolves in ammonium sulphate solution mixed with ammonium hydroxide. solution of compound `(A)` in dilute `HCl` gives a bluish white//white precipitate `(F)` with excess of `(F)` with excees of `K_(4)[Fe(CN)_(6)]` identify `(A)` to `(F)` and explain the reactions.

Options

A. `+3,+2,+2`
B. `+3,+3,+2`
C. `+2,+3,+2`
D. `+2,+2,+3`

Answer

C

Explanation

`H=FeCl_(2),I=Fe(SCN)_(3)`