Question

Consider ‘n’ is the number of lone pair of electrons present in the equatorial position of the most stable structure of \( \text{ClF}_3 \). The ions from the following with ‘n’ number of unpaired electrons are:
A. \( \text{V}^{3+} \)  
B. \( \text{Ti}^{3+} \) 
C. \( \text{Cu}^{2+} \) 
D. \( \text{Ni}^{2+} \) 
E. \( \text{Ti}^{2+} \)
Choose the correct answer from the options given below:

• A. B and D Only
• B. B and C Only
• C. A, D and E Only
• D. A and C Only

Hint:

To determine the number of unpaired electrons, look at the electronic configurations of the ions.

Answer 1

The Correct Option is A

The unpaired electrons depend on the electronic configuration of the ions. The number of unpaired electrons in Ti$^{3+}$ and Ni$^{2+}$ ions will match the given condition for \( n \). Final Conclusion: The correct answer is Option (1), B and D Only.