[Pd(F)(Cl)(Br)(I)]^2- has n number of geometrical isomers. Then, the spin-only magnetic moment and crystal field stabilization energy [CFSE] of…
JEE Main 2020 — Chemistry Inorganic Chemistry
2020mcqhard
[Pd(F)(Cl)(Br)(I)]2− has n number of geometrical isomers. Then, the spin-only magnetic moment and crystal field stabilization energy [CFSE] of [Fe(CN)6]n−6 , respectively, are:
[Note: Ignore the pairing energy]
Official previous-year question
Held on 9 Jan 2020 · Verified 6 Jul 2026.
Options
A
2.84BM and −16Δ0
B
5.92BM and 0
C
1.73BM and −2.0Δ0
D
0BM and −2.4Δ0
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Solution
Number of Geometrical Isomers in square planar [PdFClBr]2− are =3
Hence, n=3
[Fe(CN)6]3−
Fe3+=3d5, According to CFT, configuration is t2g221eg00; it means number of unpaired electron (n)=1