NEET UG 2006 — Inorganic Chemistry

$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3$ (at. no. or $\mathrm{Cr}=24$ ) has a magnetic moment of 3.83 B.M. The correct distribution of $3 d$ electrons in the Chromium of the complex is:

$\mathrm{Al}_2 \mathrm{O}_3$ can be converted to anhydrous $\mathrm{AlCl}_3$ by heating:

Copper sulphate dissolves in excess of $\mathrm{KCN}$ to give:

$\left.\left[\mathrm{CoNH}_3\right)_4\left(\mathrm{NO}_2\right)_2\right] \mathrm{Cl}$ exhibits

In which of the following molecules are all the bonds not equal?

In which of the following pairs are both the ions coloured in aqueous solution- [At. No. : \(\mathrm{Sc}=21, \mathrm{Ti}=22, \mathrm{Ni}=28, \mathrm{Cu}=29, \mathrm{Co}=27\)]

More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is:

The correct order regarding the electronegativity of hybrid orbitals of carbon is:

The electronegativity difference between $\mathrm{N}$ and $\mathrm{F}$ is greater that that between $\mathrm{N}$ and $\mathrm{H}$ yet the dipole moment of $\mathrm{NH}_3$ (1.5 D) is larger than that of $\mathrm{NF}_3(0.2 \mathrm{D})$. This is because:

The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:

Which of the following is not a correct statement?

Which of the following is not isostructural with $\mathrm{SiCl}_4$ ?

Which of the following is the most basic oxide?

Which of the following species has a linear shape?

Which one of the following orders is not in accordance with the property stated against it?