NEETChemistrySolutions
Match List I with List II. List I (Liquid Mixture) List II (Solution Behavior) A. Ethanol + Acetone I. Ideal solution B. Nitric acid + Water II. Positive deviation from Raoult's law C. Bromoethane + Chloroethane III. Negative deviation from Raoult's law Choose the correct answer from the options given below:
Options
- AA-I, B-II, C-III
- BA-II, B-I, C-III
- CA-II, B-III, C-I
- DA-III, B-II, C-I
Correct answer
C. A-II, B-III, C-I
Step-by-step solution
According to Raoult's law and the properties of liquid mixtures: A. Ethanol and acetone mixture shows a positive deviation from Raoult's law (A-II). In pure ethanol, molecules are hydrogen bonded. On adding acetone, its molecules get in between the host molecules and break some of these hydrogen bonds, weakening the overall intermolecular interactions. B. Nitric acid and water mixture shows a negative deviation from Raoult's law (B-III). This is because the new interactions (hydrogen bonding) between nitric acid an