Question

Sodium hydroxide solution is added to the solutions containing the ions mentioned in List X. List Y gives the details of the precipitate. Match the ions with their coloured precipitates.

List X	List Y
(i) Pb2+	(A) Reddish brown
(ii) Fe2+	(B) White insoluble in excess
(iii) Zn2+	(C) Dirty green
(iv) Fe3+	(D) White soluble in excess
(v) Cu2+	(E) White soluble in excess
(vi) Ca2+	(F) Blue

Answer 1

The ions (List X) with their correct coloured precipitates (List Y) are given below:

List X	List Y
(i) Pb2+	(D) White; Soluble in excess
(ii) Fe2+	(C) Dirty-green
(iii) Zn2+	(E) White; Soluble in excess
(iv) Fe3+	(A) Reddish-brown
(v) Cu2+	(F) Blue
(vi) Ca2+	(B) White; Insoluble in excess