JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
We have three aqueous solutions of \(\mathrm{NaCl}\) labelled as ' \(A\) ', ' \(B\) ' and ' \(C\) ' with concentration \(0.1 \mathrm{M}\), \(0.01 \mathrm{M} \& 0.001 \mathrm{M}\), respectively. The value of vant hoff 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 & Solution
Correct Answer
(A) \(i_A < i_B < i_C\)
Step-by-step Solution
Detailed explanation
Salt Values of \(i\) (for different conc. of a Salt) \(0.1 M\) \(0.01 M\) \(0.001 M\) \(NaCl\) \(1.87\) \(1.94\) \(1.94\) \(i\) approach \(2\) as the solution become very dilute.
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