3. 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

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 ehtnaol shows-ve deviation from Raoult’s Law

ANSWER . B

Explanation : n- hepane will decrease the inter molecular forces between ethnol so it will increase the vapour pressure than expected from Raoult’s Law