NEET Chemistry Van't Hoff Factor MCQ Question
Which of the following statements about the Van't Hoff factor (i) are correct?
For dissociation of solutes like NaCl, the Van't Hoff factor is greater than 1.
The Van't Hoff factor for a non-dissociating solute is always equal to its molarity.
The Van't Hoff factor for acetic acid in benzene is less than 1 due to dimerization.
Higher concentrations of KCl lead to a decrease in Van't Hoff factor values.
Correct Answer
Detailed Explanation
The Van't Hoff factor for dissociated solutes such as NaCl is greater than 1, indicating the increase in particle number. Acetic acid forms dimers in benzene, resulting in a Van't Hoff factor of less than 1. However, option B is incorrect as the factor is not always equal to molarity, and option D is misleading since higher concentrations typically yield a stable i value for KCl.
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