Which of the following compounds is a planar and a polar compound?
 
1. TeCl₄
2. SO₂
3. SF₆
4. XeF₂

Which of the following statements is incorrect?

The set of isomers of ${\mathrm{C}}_6{\mathrm{H}}_4{\mathrm{Cl}}_2$ that have an equal dipole moment with ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{Cl}$ & C₆H₆ respectively is : 

Xe F${}_2$ is isostructural with : 

1. ${\mathrm{SbCl}}_3$

2. ${\mathrm{BCl}}_3$

3. ${\mathrm{TeF}}_2$

4. ${\mathrm{ICl}}_2^{-}$

Which of the following molecules shows a non-zero dipole moment?

1. ${\mathrm{Carbon\; dioxide\; (CO₂)}}_{}$

2. p-Dichlorobenzene (C₆H₄Cl₂)

3. Carbontetrachloride (CCl₄)

4. Water (H₂O)

An incorrect statement regarding resonating structures is : 

Assuming that Hund's rule is violated, the bond order and magnetic nature of the diatomic molecule $B_2$ is:

The hybridization of orbitals of N atom in $N{O}_3^{-},<mspace\; width="1em"></mspace>N{O}_2^{+,\hspace{0.17em}}and<mspace\; width="1em"></mspace>N{H}_4^{+}$ are respectively:

1. $sp,<mspace\; width="1em"></mspace>s{p}^2,<mspace\; width="1em"></mspace>s{p}^3$

2. $s{p}^2,<mspace\; width="1em"></mspace>sp,<mspace\; width="1em"></mspace>s{p}^3$

3. $sp,<mspace\; width="1em"></mspace>s{p}^3,<mspace\; width="1em"></mspace>s{p}^2$

4. $s{p}^2,<mspace\; width="1em"></mspace>s{p}^3,<mspace\; width="1em"></mspace>sp$

A molecule having the smallest bond angle among the following is :

Molecule/Ion that is diamagnetic in nature is: