The correct increasing order of spin... | Coordination Compounds | JEE Main 2026

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The correct increasing order of spin-only magnetic moment values of the complex ions $\left[\mathrm{MnBr}_4\right]^{2-}(\mathrm{A}),\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}(\mathrm{B}),\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}(\mathrm{C})$ and $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}(\mathrm{D})$ is :

Select the correct option:

A

$\mathrm{A}=\mathrm{B}<\mathrm{D}<\mathrm{C}$

B

$C<\mathrm{B}<\mathrm{D}<\mathrm{A}$

C

$\mathrm{C}=\mathrm{D}<\mathrm{B}<\mathrm{A}$

D

$\mathrm{A}=\mathrm{B}<\mathrm{C}<\mathrm{D}$

✓ Correct! Well done.

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