Coordination Compounds — Chemistry STD 12 Science — Question

Match the complex ions given in Column I with the colours given in Column II and assign the correct code:

	Column I (Complex ion)		Column II (Colour)
a.	[Co(NH3)6]3+	1.	Violet
b.	[Ti(H2O)6]3+	2.	Green
c.	[Ni(H2O)6]2+	3.	Pale blue
d.	[Ni(H2O)4(en)]2+ (aq)	4.	Yellowish orange
		5.	Blue

Code:

1. A (1), B (2), C (4), D (5).
2. A (4), B (3), C (2), D (1).
3. A (3), B (2), C (4), D (1).
4. A (4), B (1), C (2), D (3).