On the basis of the information given below mark the correct option.
Information
| i. | In bromoethane and chloroethane mixture intermolecular interactions of A—A and B—B type are nearly the same as A—B type interactions. |
| ii. | In ethanol and acetone mixture A—A or B—B type intermolecular interactions are stronger than A—B type interactions. |
| iii. | In chloroform and acetone mixture A—A or B—B type intermolecular interactions are weaker than A—B type interactions. |
1. Solution (ii) and (iii) will follow Raoult’s law
2. Solution (i) will follow Raoult’s law
3. Solution (ii) will show negative deviation from Raoult’s law
4. Solution (iii) will show positive deviation from Raoult’s law
For an ideal solution, the A—A or B—B type intermolecular interactions nearby are equal to AB-type interaction. Here, a mixture of bromoethane and chloroethane is an example of the ideal solution.
On the other hand, chloroform and acetone mixture is an example of a non-ideal solution having negative deviation. So, (A—A) or (B—B) interaction must be stronger than A—B interaction, While ethanol-acetone mixture showspositive deviation due to weaker A—B interaction in cornparigon io A—A or A—B interaction.
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