Looking for classes? Ksquare Career Institute, Bengaluru →
Coordination Compounds
Crystal Field Theory – Colour of Complexes
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- years asked, 2017–2026
- 1 of 10
- of Coordination Compounds
- 0.96%
Concepts tested
- spectrochemical series and energy absorbed
All Questions
2022 1 question
-
The order of energy absorbed which is responsible for the color of complexes A. $[Ni(H_2O)_2(en)_2]^{2+}$ B. $[Ni(H_2O)_4(en)]^{2+}$ and C. $[Ni(en)_3]^{2+}$ isen (ethylenediamine) is a stronger field ligand than $H_2O$. As the number of en ligands increases, the crystal field splitting $\Delta_o$ increases, so the energy absorbed increases. $[Ni(en)_3]^{2+}$ (3 en) > $[Ni(H_2O)_2(en)_2]^{2+}$ (2 en) > $[Ni(H_2O)_4(en)]^{2+}$ (1 en) So the order is C > A > B.