NEET UG 2004 — Inorganic Chemistry

Considering $\mathrm{H}_2 \mathrm{O}$ as a weak field ligand, the number of unpaired electrons in $\left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ will be: (atomic number of $\mathrm{Mn}=25$ )

In $\mathrm{BrF}_3$ molecule, the lone pairs occupy equatorial positions to minimize:

Among the following the pair in which the two species are not isostructural is:

Chloropicrin is obtained by the reaction

Which of the following does not have a metal carbon bond?

Which of the following is considered to be an anticancer species?

Among $\mathrm{K}, \mathrm{Ca}, \mathrm{Fe}$ and $\mathrm{Zn}$, the element which can form more than one binary compound with chlorine is:

Ionic radii are:

Lanthanoids are:

Which one of the following statements about the zeolite is false?

In a regular octahedral molecule, $\mathrm{MX}_6$ the number of $\mathrm{X}-\mathrm{M}-\mathrm{X}$ bonds at $180^{\circ}$ is:

$\mathrm{H}_2 \mathrm{O}$ is dipolar whereas $\mathrm{BeF}_2$ is not. It is because:

$\mathrm{CN}^{-}$is strong field ligand. This is due to the fact that :

Among the following series of transition metal ions, the one where all metal ions have $3 d^2$ electronic configuration is: [At. no.s $\mathrm{Ti}=22, \mathrm{~V}=23, \mathrm{Cr}=24, \mathrm{Mn}=$ 25]

Which of the following coordination compounds would exhibit optical isomerism?

Among $\left[\mathrm{Ni}(\mathrm{CO})_4\right],\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}\left[\mathrm{NiCl}_4\right]^{2-}$ species the hybridisation states at the $\mathrm{Ni}$ atom are respectively: [Atomic number of $\mathrm{Ni}=28$ ]

In an octahedral structure, the pair of $d$ orbitals involved in $d^2 s p^2$ hybridisation is: