Chemistry · 2021
JEE Main · 26 August 2021, Shift 2 · Q39
Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value. Complexes: A [ CoF_6]^3-, B [ Co (…
Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value.
Complexes : $\displaystyle \underset{\mathrm{A}}{\left[\mathrm{CoF}_6\right]^{3-}}, \underset{\mathrm{B}}{\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}}, \underset{\mathrm{C}}{\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}}$ and $\displaystyle \underset{\mathrm{D}}{\left[\mathrm{Co}(\mathrm{en})_3\right]^{3+}}$
Choose the correct option :
Official answer
(4)
$\displaystyle \mathrm{B}<\mathrm{A}<\mathrm{C}<\mathrm{D}$
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JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.