JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Which one of the following species responds to an external magnetic field?
- A \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
- B \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
- C \(\left[\mathrm{Co}(\mathrm{CN})_{6}\right]^{3-}\)
- D \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
Answer & Solution
Correct Answer
(A) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
Step-by-step Solution
Detailed explanation
\(1.\) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\) \(\mathrm{Fe}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{5}\) Hybridisation : \(\mathrm{sp}^{3} \mathrm{~d}^{2}\) Magnetic nature : Paramagnetic (so this complex response to external magnetic field) \(2.\)…
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