The order of energy absorbed which is responsible for the color of complexes

(A) [Ni(H₂O)₂(en)₂]²⁺

(B) [Ni(H₂O)₄(en)]²⁺ and

(C) [Ni(en)₃]²⁺

is

Ethylene diaminetetraacetate (EDTA) ion is :

Match List-I with List-II :

	List-I		List-II
(a)	$${[Fe{(CN)_6}]^{3 - }}$$	(i)	5.92 BM
(b)	$${[Fe{({H_2}O)_6}]^{3 + }}$$	(ii)	0 BM
(c)	$${[Fe{(CN)_6}]^{4 - }}$$	(iii)	4.90 BM
(d)	$${[Fe{({H_2}O)_6}]^{2 + }}$$	(iv)	1.73 BM

Choose the correct answer from the options given below.

The calculated spin only magnetic moment of Cr²⁺ ion is?