Exams › NEET › Chemistry

Of the following 0.10 m aqueous solutions, which one will exhibit the largest freezing point depression?

1. KCl
2. C₆H₁₂O₆
3. Al₂(SO₄)₃
4. K₂SO₄

Correct answer: Al₂(SO₄)₃

Solution

Freezing point depression depends on the van 't Hoff factor (i), which is the number of particles a compound dissociates into in solution. Al₂(SO₄)₃ dissociates into 5 ions (2 Al³⁺ and 3 SO₄²⁻), the highest among the options, leading to the largest freezing point depression.

Related NEET Chemistry questions

• At \( 80^{\circ} \mathrm{C}, \) the vapour pressure of pure liquid \( A \) is 520 mmHg and that of pure liquid \( B \) is 1000 mmHg. If a mixture solution of \( A \) and \( B \) boils at \( 80^{\circ} \) and 1 atm pressure, the amount of \( A \) (mole percent) in the mixture is:
• A solution is prepared by adding 2 g of substance \( A \) to 18 g of water. The mass percent of the solute is:
• Which of the following solutions shows positive deviation from Raoult's law?
• Which of the following forms an ideal solution? This question has multiple correct options
• Which of the following will show a negative deviation from Raoult's law?
• An aqueous solution of methanol in water has vapour pressure:

⚔️ Practice NEET Chemistry free + battle 1v1 →