Which radical of group `IV^(th)` gives bluish white / white precipitate with excess `K_(4)[Fe(CN)_(6)]`?

In K_(4)Fe(CN)_(6)

K_(4)[Fe(CN)_(6)] is a

K_(4)[Fe(CN)_(6)] is a

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.

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.

Which will give a white precipitate with AgNO_3 in

Cu^(2+) salts with K_(4)[Fe(CN)_(6)] gives

A white powder (A) on heating gave a non-combustible gas and a residue (B). The white compound A on reaction with H_(2)S in alkaline medium forms a precipitate (C ) which dissolves in dil. CH_(3)COOH . (B) can be disssolved in dil HCl to prepare a solution which gives a white precipitate with K_(4)[Fe(CN)_(6)] . Which of the following is true about B ?