NEET-XII-Chemistry
Previous Year Paper year:2017
- #75What is the correct electronic configuration
of the central atom in ``K_4[Fe(CN)_6] ``based on
crystal field theory?
(1)``t_{2g}^4`` ``e_g^2``
(2)``t_{2g}^6`` ``e_g^0``
(3) ``e^3`` ``t_{2}^3``
(4)``e^4`` ``t_{2}^2``digAnsr: 2Ans : ( 2 )
Sol. K
4
[Fe(CN)
6
]
Fe ground state: [Ar]3d64s2
Fe2+: 3d64s0
Energy
eg
t2g
In
Spherical
field
6 0
2g gt e
Fe
2+
In the presence of
6CN strong field
-