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NEET 2014
Exam
NEET
Year
2014
Subject
Chemistry
Chapter
Coordination Compounds

NEET 2014 · Chemistry · Coordination Compounds

Among the following complexes the one which shows Zero crystal...

Among the following complexes the one which shows Zero crystal field stabilizations energy (CFSE)

Options

  1. A[Ni(H2O)6]3+{\left[Ni{\left({H}_{2}O\right)}_{6}\right]}^{3 +}
  2. B[Fe(H2O)6]3+{\left[Fe{\left({H}_{2}O\right)}_{6}\right]}^{3 +}
  3. C[Co(H2O)6]2+{\left[Co{\left({H}_{2}O\right)}_{6}\right]}^{2 +}
  4. D[Co(H2O)6]3+{\left[Co{\left({H}_{2}O\right)}_{6}\right]}^{3 +}

Correct answer

B. [Fe(H2O)6]3+{\left[Fe{\left({H}_{2}O\right)}_{6}\right]}^{3 +}

Step-by-step solution

[Fe(H2O)6]3+{\left[Fe{\left({H}_{2}O\right)}_{6}\right]}^{3 +}
Fe+3=3d5(t2g1,1,1eg1,1)F{e}^{+ 3} = 3{d}^{5}\left({t}_{2g}^{1,1, 1}{e}_{g}^{1,1}\right)
So C.F.S.E is =[−0.4×3+0.6×2]∆0=0= \left[- 0.4 \times 3 + 0.6 \times 2\right]{∆}_{0} = 0
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