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  2. Question
  3. Chemistry
  4. The Crystal Field Stabilization Energy (CFSE) and magnetic moment (spin-only) of an octahedral aqua complex of a metal ion ( M z+) arc -0.8 Δ0 and 3.87 BM, respectively. Identify ( M Z+ ) :

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Q. The Crystal Field Stabilization Energy $(CFSE)$ and magnetic moment (spin-only) of an octahedral aqua complex of a metal ion $\left( M ^{z+}\right)$ arc $-0.8 \Delta_{0}$ and $3.87 \,BM$, respectively. Identify $\left( M ^{ Z+ }\right)$ :

JEE MainJEE Main 2021Coordination Compounds

Solution:

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hence $d^7$ configuration is of $Co^{2+}$