MHT CET202519 Apr 2025Morning ShiftChemistrySolutionsActual
Which from following mixtures obeys Raoult's law?
Options
- AChloroform + acetone
- BCarbon disulfide + acetone
- CBenzene + toluene
- DEthanol + acetone
Correct answer
C. Benzene + toluene
Step-by-step solution
Mixtures obeying Raoult's law form ideal solutions where intermolecular A-B interactions equal the average of A-A and B-B interactions, resulting in zero enthalpy ( H_ mix = 0 ) and volume ( V_ mix = 0 ) of mixing. Phenol and aniline exhibit hydrogen bonding stronger than their pure components' interactions, causing negative deviation. Chloroform and acetone form hydrogen bonds between chloroform's hydrogen and acetone's oxygen, also leading to negative deviation. Ethanol and acetone experience disrupted hydrogen b