JEE Main 2011 — Inorganic Chemistry

The hybridization of orbitals of $\mathrm{N}$ atom in $\mathrm{NO}_3^{-}, \mathrm{NO}_2^{+}$and $\mathrm{NH}_4^{+}$are respectively :

The structure of $\mathrm{IF}_7$ is :

Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides ?

Which of the following facts about the complex $\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$ s wrong ?

Among the following the maximum covalent character is shown by the compound:

Which of the following statement is wrong?

Boron cannot form which one of the following anions?

Which of the following statements regarding sulphur is incorrect?

In context of the lanthanoids, which of the following statements is not correct ?

The outer electron configuration of Gd (Atomic No : 64 is :