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

Options

• (i) - (D), (ii) - (C), (iii) - (E), (iv) - (A), (v) - (F), (vi) - (B)

• (i) - (A), (ii) - (D), (iii) - (E), (iv) - (B), (v) - (F), (vi) - (C)

• (i) - (B), (ii) - (C), (iii) - (E), (iv) - (A), (v) - (F), (vi) - (D)

• (i) - (B), (ii) - (C), (iii) - (F), (iv) - (E), (v) - (A), (iv) - (D)

Answer 1

(i) - (D), (ii) - (C), (iii) - (E), (iv) - (A), (v) - (F), (vi) - (B)

Explanation:

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