Question

Which of the following form is an ideal solution?

• A. Ethyl bromide + Ethyl iodide
• B. Ethyl alcohol + Water
• C. Chloroform + Benzene
• D. Benzene + Toluene

Answer 1

Answer: (A), (D)

The correct options are
A Ethyl bromide + Ethyl iodide
D Benzene + Toluene

The following forms an ideal solution.
(A) Ethyl bromide + Ethyl iodide
(D) Benzene + Toluene
An ideal solution obeys Raoult's law at all temperatures and pressures.
The solute-solute and the solvent-solvent interactions are almost similar to solute-solvent interactions. No association or dissociation takes place. It does not form azeotrope mixture.
The following forms non ideal solution.
Ethyl alcohol + Water. It shows positive deviation from Raoult's law
Chloroform + Benzene. It shows negative deviation from Raoult's law