Class 12 NEET Chemistry Coordination Compounds

Stronger the field strength of ligand, higher will be the energy absorbed by the complex.
⇒ 'en' has a stronger field strength than ' H2O ' according to spectrochemical series
∴ Correct order of energy absorbed will be:
[Ni(en)3]2+>[Ni(H2O)2(en)2]2+>[Ni(H2O)4(en)]2+
i.e. (C)>(A)>(B)