JEE Main Chemistry question
How many of the following mixtures behave as ideal solutions? i. n-Hexane + n-heptane ii. Bromoethane + chloroethane iii. Acetone + ethanol iv. Acetone + carbon disulphide v. Acetone + chloroform vi. Benzene + toluene vii. Phenol + aniline
Answer: 3
Solution
n-Hexane+n-heptane, bromoethane+chloroethane, and benzene+toluene are classic pairs of structurally similar, weakly-interacting liquids that behave ideally. Acetone+ethanol and acetone+carbon disulphide show
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