Q22 / 90 · JEE Main 2009 · Chemistry

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?

  • A
    The solution formed is an ideal solution
  • Correct answer
    B
    The solution is non-ideal, showing +ve deviation from Raoult's law.
  • C
    The solution is non-ideal, showing -ve deviation from Raoult's law.
  • D
    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.

Hence, the correct answer is option: 'B'.

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