Coordination Compounds Question 18
Question 18 - 2024 (31 Jan Shift 2)
Select the option with correct property -
(1) $\left[\mathrm{Ni}(\mathrm{CO}){4}\right]$ and $\left[\mathrm{NiCl}{4}\right]^{2-}$ both diamagnetic
(2) $\left[\mathrm{Ni}(\mathrm{CO}){4}\right]$ and $\left[\mathrm{NiCl}{4}\right]^{2-}$ both paramagnetic
(3) $\left[\mathrm{NiCl}{4}\right]^{2-}$ diamagnetic, $\left[\mathrm{Ni}(\mathrm{CO}){4}\right]$ paramagnetic
(4) $\left[\mathrm{Ni}(\mathrm{CO}){4}\right]$ diamagnetic, $\left[\mathrm{NiCl}{4}\right]^{2-}$ paramagnetic
Show Answer
Answer (4)
Solution
$\left[\mathrm{Ni}(\mathrm{CO})_{4}\right] \rightarrow$ diamagnetic, $\mathrm{sp}^{3}$ hybridisation, number of unpaired electrons $=0$
$\left[\mathrm{NiCl}_{4}\right]^{2-}, \rightarrow$ paramagnetic, $\mathrm{sp}^{3}$ hybridisation, number of unpaired electrons $=2$
