Question

The solution formed by adding carbon disulphide to acetone, shows positive deviation from Raoult's law. It is because

• A. the dipolar interactions between solute-solvent molecules are stronger than the respective interactions among the solute-solute and solvent-solvent molecules
• B. All the dipolar interactions among solute-solvent, solute-solute and solvent-solvent are same
• C. the dipolar interactions between solute-solvent molecules are weaker than the respective interactions among the solute-solute and solvent-solvent molecules
• D. Only solute-solvent interactions are involved in the reaction

Answer 1

Answer: (C)

Correct answer is (c) the dipolar interactions between solute-solvent molecules are weaker than the respective interactions among the solute-solute and solvent-solvent molecules