Ncert Exercises & Solutions

Match the complex ions give in Column I with the colours given in column II and assign the correct code.

Column I (Complex ion)	Column II (Colour)
A. $[Co {({NH}_{3})}_{6}]^{3 +}$	1. Violet
B. $[Ti {(H_{2} O)}_{6})]^{3 +}$	2. Green
C. ${[Ni (H_{2} O_{6}]}^{2 +}$	3. Pale blue
D. ${[Ni {(H_{2} O)}_{4} (en)]}^{2 +}$	4. Yellowish orange

Codes:

Options:	A	B	C	D
1.	2	3	4	1
2.	3	1	5	2
3.	5	4	3	2
4.	4	3	2	1