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 is non-ideal, showing negative deviation from Raoult's Law b)The solution is non-ideal, showing positive deviation from Raoult's Law c)n-heptane shows positive deviation while ethanol shows negative deviation from Raoult's Law d)The solution formed is an ideal solution

Options

A. The solution is non-ideal, showing negative deviation from Raoult's Law
B. The solution is non-ideal, showing positive deviation from Raoult's Law
C. n-heptane shows positive deviation while ethanol shows negative deviation from Raoult's Law
D. The solution formed is an ideal solution

Answer

B

Explanation

For this solution intermolecular interactions between n-heptane and ethanol are weaker than n-heptane n-heptane and ethanol-ethanol interactions hence the solutions of n-heptane and ethanol is non-ideal and shows positive deviation from Raoults' law.