Aqueous solutions from the following with the highest boiling point will be: (Assume no dissociation or association)

1.0 M Fructose

The correct answer is option (4) 1.0 M Fructose.

The boiling point of a solution is affected by the concentration of solute particles in the solution. The greater the concentration of solute particles, the higher the boiling point elevation.

Let us analyze the given options:

1. 0.1 M Urea
Urea is a non-ionic solute that does not dissociate or associate in solution. It will contribute to the boiling point elevation, but the effect will be relatively small due to its low concentration.

2. 0.25 M Glucose
Glucose is a non-ionic solute, and at 0.25 M concentration, it will contribute to a moderate boiling point elevation compared to urea.

3. 0.2 M Acetic acid
Acetic acid (\(CH_3COOH\)) is a weak electrolyte that partially dissociates into ions (\(CH_3COO^-\) and \(H^+\)). However, since we are assuming no dissociation or association, we can treat it as a non-ionic solute. The concentration is 0.2 M.

4. 1.0 M Fructose
Fructose is a non-ionic solute. At a concentration of 1.0 M, it will contribute significantly to the boiling point elevation.

Based on the given concentrations, the solution with the highest boiling point will be the one with the highest concentration of non-ionic solute particles. Therefore, the aqueous solution with the highest boiling point is option: 4. 1.0 M Fructose