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?

Options

A. The solution formed is an ideal solution
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

Answer

B

Explanation

n-heptane will decrease the inter-molecular forces between ethanol so it will increase the vapour pressure than expected from Raoult.s law.