Question

Which of the following is an ideal solution?

• A. Ethyl chloride and ethyl bromide
• B. n-Hexane and n-Heptane
• C. $CC{l}_4\text{and}SiC{l}_4$
• D. All of the above

Answer 1

The correct option is D All of the above

The solutions which obey Raoult’s law at all compositions of solute in solvent at all temperature are called ideal solutions.
Ideal solutions can be obtained by mixing two components with identical molecular size, structure and they should have almost same inter molecular attraction.
Followings are the characteristics that an ideal solution should follow:
(i) It should obey Raoult's law, i.e. $P_A={\chi }_A\text{and}{P}_B={\chi }_B$
(ii) No heat should be evolved or absorbed during the mixing, i.e. $\Delta H_{\text{(Mixing)}}=0$
(iii) No expansion or contraction on mixing, i.e. $\Delta V=0$