CC_JEE MAIN_08-04-2019_S1 - Competishun – Live JEE & NEET Courses and Exam Prep

JEE MAIN 2019

08-04-2019 S1

Question

The correct order of the spin-only magnetic moment of metal ions in the following low-spin complexes, $\left[\mathrm{V}(\mathrm{CN})_6\right]^{4-},\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-},\left[\mathrm{Ru}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ and $\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{2+}$, is:

Select the correct option:

$\mathrm{V}^{2+}>\mathrm{Cr}^{2+}>\mathrm{Ru}^{3+}>\mathrm{Fe}^{2+}$

$\mathrm{Cr}^{2+}>\mathrm{V}^{2+}>\mathrm{Ru}^{3+}>\mathrm{Fe}^{2+}$

$\mathrm{V}^{2+}>\mathrm{Ru}^{3+}>\mathrm{Cr}^{2+}>\mathrm{Fe}^{2+}$

$\mathrm{Cr}^{2+}>\mathrm{Ru}^{3+}>\mathrm{Fe}^{2+}>\mathrm{V}^{2+}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution