The incorrect order of boiling point is-

1. ${\mathrm{H}}_2\mathrm{O} > {\mathrm{CH}}_3\mathrm{OH}$             

2. $\mathrm{N}{\left({\mathrm{CH}}_3\right)}_3< \mathrm{NH}{\left({\mathrm{CH}}_3\right)}_2$

3. ${\mathrm{H}}_3{\mathrm{PO}}_4> {\mathrm{Me}}_3{\mathrm{PO}}_4$         

4. ${\mathrm{CH}}_3{\mathrm{N}}_3> {\mathrm{HN}}_3$

Which of the following is not a perfect nonpolar molecule?

1. $B_3{N}_3{H}_6$                     

2. CCl₄

3. ${\mathrm{SO}}_3$                             

4. All of the above

Choose the correct option for the following molecule:

1. Non planar   

2. $\mu \ne 0$   

3. Both (1) and (2)     

4. $\mu =0$

The compound that has the highest ionic character associated with the X-Cl bond is:

1. ${\mathrm{PCl}}_5$ 

2. ${\mathrm{BCl}}_3$

3. ${\mathrm{CCl}}_4$

4. ${\mathrm{SiCl}}_4$

The least polar bond is present in which of the following?

The correct order of increasing s-character (in percentage) in the hybrid orbitals of the following molecules/ions is:

The total number of possible resonance forms for the nitrate ion, ($\mathrm{N}{{\mathrm{O}}_3}^{-}$) is: 

The shape of $\mathrm{Xe}{{\mathrm{F}}_3}^{+}$ is:

The molecular geometry that is least likely to result from a trigonal bipyramidal electron geometry is:

On the left are given decreasing orders of elements for a certain property and on right side is given the property. The incorrect order for the given properties is:

1. ${\mathrm{AlF}}_3>\mathrm{MgO}>{\mathrm{MgF}}_2$    : Lattice energy

2. $\mathrm{Li}>\mathrm{Na}>\mathrm{Al}>\mathrm{Mg}$       : Electron affinity

3. ${\mathrm{PF}}_5>$ ${\mathrm{SF}}_6$ $>$ ${\mathrm{SiF}}_4$    : Lewis acidic character

4. ${\mathrm{SiCl}}_4>{\mathrm{SiBr}}_4$ $>{\mathrm{SiI}}_4$   : Decreasing ionic character