Chemistry · 2019
JEE Main · 8 April 2019, Shift 1 · Q48
The correct order of the spin-only magnetic moment of metal ions in the following low-spin complexes, [ V ( CN )_6]^4-,[ Fe ( CN )_6]^4-, [ Ru (…
The correct order of the spin-only magnetic moment of metal ions in the following low-spin complexes, $\displaystyle \left[\mathrm{V}(\mathrm{CN})_6\right]^{4-},\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$, $\displaystyle \left[\mathrm{Ru}\left(\mathrm{NH}_3\right)_6\right]^{3+}$, and $\displaystyle \left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{2+}$, is :
Official answer
(1)
$\displaystyle \mathrm{V}^{2+}>\mathrm{Cr}^{2+}>\mathrm{Ru}^{3+}>\mathrm{Fe}^{2+}$
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.