Which one of the following.... | JEE Main 2024

JEE MAIN 2024

05-04-2024 S1

Question

Which one of the following complexes will exhibit the least paramagnetic behaviour ? [Atomic number, Cr=24,Mn=25,Fe=26,Co=27 ]

Select the correct option:

$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$

$\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$

$\left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$

$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Least paramagnetic behaviour $=\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^2$

Question Tags

JEE Main

Chemistry

Easy

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