Question

an ammoniacal solution of a cation gives chocolate brown precipitate on adding K4[Fe(CN)6].The metal ion is
(A)Cu(II)
(B)Fe(III)
(C)Fe(II)
(D)Cu(I)​

Answer 1

Answer:

Explanation:

(B) FE (III)

Answer 2

Answer:

Option A

Explanation:

Cu(II) is the metal ion