Q55 / 200 · NEET 2024 (Re-NEET) · Chemistry
Which of the following pairs of ions will have same spin only magnetic moment values within the pair?
A. $\mathrm{Zn}^{2+}, \mathrm{Ti}^{2+}$
B. $\mathrm{Cr}^{2+}, \mathrm{Fe}^{2+}$
C. $\mathrm{Ti}^{3+}, \mathrm{Cu}^{2+}$
D. $\mathrm{V}^{2+}, \mathrm{Cu}^{+}$
Choose the correct answer from the options given below
- AC and D only
- BA and D only
- CA and B only
- Correct answerDB and C only
Solution
Magnetic moment $\mu=\sqrt{n(n+2)} B M$
$\mathrm{n} \Rightarrow$ Number of unpaired electrons
Hence $\left(\mathrm{Cr}^{2+}, \mathrm{Fe}^{2+}\right)$ and $\left(\mathrm{Ti}^{3+}, \mathrm{Cu}^{2+}\right)$ are the pair of same magnetic moment.
Hence $\left(\mathrm{Cr}^{2+}, \mathrm{Fe}^{2+}\right)$ and $\left(\mathrm{Ti}^{3+}, \mathrm{Cu}^{2+}\right)$ are the pair of same magnetic moment.
Hence, the correct answer is option: 'D'.