MHT CET · Chemistry · Structure of Atom
Which of the following elements in their respective oxidation states does not develop spin only magnetic moment?
\(\text { [Ti }(\mathrm{Z}=22), \mathrm{Zn}(\mathrm{Z}=30), \mathrm{V}(\mathrm{Z}=23),\) \(\mathrm{Cu}(\mathrm{Z}=29)]\)
- A \(\mathrm{Cu}^{2+}\)
- B \(\mathrm{Zn}^{2+}\)
- C \(\mathrm{Ti}^{3+}\)
- D \(\mathrm{V}^{3+}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Zn}^{2+}\)
Step-by-step Solution
Detailed explanation
Spin only magnetic moment \(=\sqrt{\mathrm{n}(\mathrm{n}+2)}\) \(\mathrm{n}=\) no. of unpaired electrons \(\mathrm{Zn}^{2+} \Rightarrow[\mathrm{Ar}] 3 \mathrm{~d}^{10}\)
\(\mathrm{n}=0\)
Spin only magnetic moment \(=0\)
\(\mathrm{n}=0\)
Spin only magnetic moment \(=0\)
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