Chemistry · 2019
JEE Main · 10 January 2019, Shift 2 · Q48
The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is two. The metal ion is:
The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is two. The metal ion is :
Official answer
(3)
$\displaystyle \mathrm{Co}^{2+}$
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.