Question

Statement 1:A mixture of cyclohexane and ethanol shows $-ve$ deviation from Raoult’s law
Statement 2:Cyclohexane reduces the intermolecular attraction between ethanol molecules

• A. If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1
• B. Ifboth Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the Statement 1
• C. If Statement 1 is true but Statement 2 is false
• D. If Statement 1 is false but Statement 2 is true

Answer 1

Answer: (D)

The given explanation is correct and a reduction in molecular attraction will increase vaporisation nature and lead for higher vapour pressure than that calculated by Raoult’s law. Thus, mixture will show positive deviation