Question

Which of the following solutions is an example of negative deviation from Raoult�s law?

• A. Acetone + Ethanol
• B. Carbon tetrachloride + Chloroform
• C. Acetone + Chloroform
• D. Water + Ethanol

Answer 1

Answer: (C)

Acetone + Chloroform

Answer 2

$CH_3COCH_3 + CHCl_3$ is an example of solution showing negative deviation from Raoult�s law since $A - B$ attractions (acetone + chloroform) are more than $A -A$ (acetone - acetone) and $B - B$

(chloroform - chloroform) attractions.