A gas that should not be collected over water is-

1. ${\mathrm{H}}_2$

2. ${\mathrm{N}}_2$

3. ${\mathrm{CH}}_4$

4. HCl

 

The compound that has the lowest boiling point is:

Which of the following statements correctly describes the hydrolysis of BCl₃ and NCl₃?

The correct sequence of the polarity of the following molecules is: 
a. Benzene                         

b .Inorganic Benzene

c. ${\mathrm{PCl}}_3{\mathrm{F}}_{2<mspace\; width="1em"></mspace>}$                           

d. ${\mathrm{PCl}}_2{\mathrm{F}}_3$

(Where P=polar, NP=non-polar)

The incorrect order of boiling point is-

1. ${\mathrm{H}}_2\mathrm{O}<mspace\; width="1em"></mspace>><mspace\; width="1em"></mspace>{\mathrm{CH}}_3\mathrm{OH}$             

2. $\mathrm{N}{\left({\mathrm{CH}}_3\right)}_3<<mspace\; width="1em"></mspace>\mathrm{NH}{\left({\mathrm{CH}}_3\right)}_2$

3. ${\mathrm{H}}_3{\mathrm{PO}}_4><mspace\; width="1em"></mspace>{\mathrm{Me}}_3{\mathrm{PO}}_4$         

4. ${\mathrm{CH}}_3{\mathrm{N}}_3><mspace\; width="1em"></mspace>{\mathrm{HN}}_3$

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

Find the correct statement about the following molecule:

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: