Chemistry - Liquid Solution Question with Solution | TestHub

(P) Propane-2-ol + 2-methyl Propanol

A B

attraction are equal between A -A, A-B, B-B

so follow to Rault's law

mixture form ideal solution

(Q) ${\mathrm{H}}_2\mathrm{O}+{\mathrm{HNO}}_3$

A B

$\mathrm{A}-\mathrm{B}>\mathrm{A}-\mathrm{A}$ and $\mathrm{B}-\mathrm{B}$

show -ve deviation from rault's law so maximum boiling azeotrope

fractional distillation column gives azeotrope from residual liquid.

(R) ${\mathrm{CS}}_2+{\mathrm{CH}}_3{\mathrm{COCH}}_3$

$\mathrm{A}\mathrm{B}$

Attraction of $\mathrm{A}-\mathrm{B}<\mathrm{A}-\mathrm{A}$ and $\mathrm{B}-\mathrm{B}$

hence it show-ve deviation from raults law

(S) $\underset{\mathrm{A}}{{\mathrm{H}}_2\mathrm{O}}+\underset{\mathrm{B}}{\mathrm{HCOOH}}$

$\mathrm{A}-\mathrm{B}>\mathrm{A}-\mathrm{A}\&\mathrm{B}-\mathrm{B}$

show -ve deviaton from raoult's law maximum boiling azeotrope fractional distillation column gives raoult's azeotrope from residual liquid.