Question

We have three aqueous solutions of NaCl labelled as ‘A’, ‘B’ and ‘C’ with concentration 0.1 M, 0.01M & 0.001 M, respectively. The value of vant’ Haft factor (i) for these solutions will be in the order.

• A. $i_A<i_B<i_C$
• B. $i_A<i_C<i_B$
• C. $i_A = i_B = i_C$
• D. $i_A>i_B>i_C$

Answer 1

Answer: (A)

$i_A<i_B<i_C$

Answer 2

The van't Hoff factor increases with dilution as the degree of dissociation increases, leading to more ions in solution.