Match the items in the three columns.

Complex (column 1)

Color (column 2)

Absorption max (λ_max, nm)(column 3)

A.
\(\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]\left(\mathrm{NO}_3\right)_2\)
I.

Blue

X.
675

B.
\(\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_6\right]\left(\mathrm{NO}_3\right)_2\)
II.

Green

Y.
565

C.
\(\left[\mathrm{Ni}(\mathrm{en})_3\right]\left(\mathrm{NO}_3\right)_2\)
III.

Violet

Z.
615

The correct answer is

Question

Complex (column 1)		Color (column 2)		Absorption max (λ_max, nm)(column 3)
A.	\(\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]\left(\mathrm{NO}_3\right)_2\)	I.	Blue	X.	675
B.	\(\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_6\right]\left(\mathrm{NO}_3\right)_2\)	II.	Green	Y.	565
C.	\(\left[\mathrm{Ni}(\mathrm{en})_3\right]\left(\mathrm{NO}_3\right)_2\)	III.	Violet	Z.	615