Question

100 ml of liquid $A$ was mixed with 25 ml of liquid $B$, to give non-ideal solution of $A-B$. The volume of this mixture will be:

• A. 75 ml
• B. 125 ml exact
• C. fluctuating between 75 ml to 125 ml
• D. close to 125 ml but not exceed than 125 ml

Answer 1

Answer: (D)

close to 125 ml but not exceed than 125 ml

For non-ideal solution, $\Delta V_{mix}<0$.

Hence, total volume will be little less than (100 + 25 = 1.25 mL).

Hence option $D$ is correct.