AP EAPCET 05-Jul-2022 Shift 1 Paper

(b) Ideal solutions are the solutions which obey Raoult's law at all temperatures and pressures. The interactions of solute-solute, solvent-solvent and solute-solvent in these solutions are almost similar. No association/dissociation occurs in these solutions.
Mixture of phenol and aniline shows negative deviation from ideal behaviour and forms an azeotropic mixture. The phenol-aniline interactions are stronger than phenol-phenol or aniline-aniline interactions.
‌∆V‌mixing ‌<0
‌∆H‌mixing ‌>0
Hence, it does not form an ideal solution.
Rest options (I), (II) and (III) form ideal solution.