Question

In case of association, abnormal molar mass of solute will: 

• A. increase
• B. decrease
• C. remain same
• D. first increase and then decrease
  \vspace{5pt}

Hint:

In case of association, the abnormal molar mass tends to decrease due to the aggregation of solute molecules.

Answer 1

The Correct Option is C

Step 1: Association Explained. When solutes associate, their molecules group together, decreasing the particle count in the solution. Consequently, the observed molar mass will be lower than the theoretically predicted value.

Step 2: Deduction. Therefore, association leads to a decrease in abnormal molar mass, aligning with option (B). \vspace{10pt}