The distillate will be richer in A than the original mixture.

The distillate will be richer in B than the original mixture.

The distillate will have the same composition as the original mixture.

The distillate will contain only A.

${{\rm{C}}_3}{{\rm{H}}_5}{\rm{Br}}$

${{\rm{C}}_3}{{\rm{H}}_3}{\rm{Br}}$

${{\rm{C}}_2}{{\rm{H}}_4}{\rm{B}}{{\rm{r}}_2}$

${{\rm{C}}_3}{{\rm{H}}_7}{\rm{Br}}$

$Fe^{2+}$

$Cu^{2+}$

$Fe^{3+}$

$Zn^{2+}$

500

800

400

100

Sodamide

Sodium cyanide

Sodium nitrite

Sodium nitrate

Dumas method

Kjeldahl's method

Carius method

Liebig's method

The azo group volatilizes during digestion.

The azo group forms a stable complex with the catalyst.

The azo group does not readily convert to ammonium sulfate.

The azo group reacts with sulfuric acid to form a non-quantifiable product.

${\rm{C}}{{\rm{H}}_2}{\rm{OCl}}$

${\rm{C}}{{\rm{H}}_2}{\rm{Cl}}{{\rm{O}}_2}$

${\rm{ClC}}{{\rm{H}}_2}{\rm{O}}$

${\rm{CHClO}}$

${{\rm{N}}_2}$

${\left( {{\rm{N}}{{\rm{H}}_4}} \right)_2}{\rm{S}}{{\rm{O}}_4}$

${\rm{N}}{{\rm{O}}_2}$

None of these

${\rm{Fe}}{\left( {{\rm{CN}}} \right)_2}$

${{\rm{K}}_3}{\rm{Fe}}{\left( {{\rm{CN}}} \right)_5}{\rm{NS}}$

${\rm{N}}{{\rm{a}}_4}\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_5}{\rm{NOS}}} \right]$

${\rm{N}}{{\rm{a}}_4}{\rm{Fe}}{\left( {{\rm{CN}}} \right)_6}$

Sodamide

Sodium cyanide

Sodium nitrite

Sodium nitrate