A binary liquid solution is prepared by mixing $n$-heptane and ethanol. Which one of the following…

A binary liquid solution is prepared by mixing $n$-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution?
  1. The solution formed is an ideal solution
  2. The solution is non-ideal, showing +ve deviation from Raoult's law.
  3. The solution is non-ideal, showing -ve deviation from Raoult's law.
  4. n-heptane shows +ve deviation while ethanol shows -ve deviation from Raoult's law.

Solution

The interactions between $\mathrm{n}$-heptane and ethanol are weaker than that in pure components.

Asked in: JEE Main 2009

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