NEET Chemistry: Solutions — MCQ Test 13

Q6. A 0.1 molal solution of KCl has a van’t Hoff factor of 1.9. What is the freezing point depression? (\( K_f = 1.86 \, \text{K kg mol}^{-1} \))

Q7. What is the boiling point elevation of a 0.5 molal solution of a non-electrolyte in water? (\( K_b = 0.52 \, \text{K kg mol}^{-1} \))

Q8. A solution of 0.05 mole of a non-volatile solute in 500 g of water has an osmotic pressure of 2.463 atm at 27°C. What is the van’t Hoff factor? (\( R = 0.0821 \, \text{L atm mol}^{-1} \text{K}^{-1} \), assume 0.5 L solution)

Q9. A solution of 0.1 mole of a solute in 1 kg of water freezes at -0.558°C. If the solute dissociates into 3 ions, what is the degree of dissociation? (\( K_f = 1.86 \, \text{K kg mol}^{-1} \))

Q10. A 0.4 M solution of KNO₃ (molar mass = 101 g/mol) has a density of 1.1 g/mL. What is the mass percentage of KNO₃ in 250 mL of this solution?

NEET Chemistry — Solutions

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A solution of 0.03 mole of a non-volatile solute in 300 mL of water has an osmotic pressure of 1.231 atm at 27°C. What is the van’t Hoff factor? (\( R = 0.0821 \, \text{L atm mol}^{-1} \text{K}^{-1} \))

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Solutions. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Solution, Volatile, Pressure, Prepared, Dissolving, and Molarity.

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Preview of Questions in this Test

Q1. A solution of 0.03 mole of a non-volatile solute in 300 mL of water has an osmotic pressure of 1.231 atm at 27°C. What is the van’t Hoff factor? (\( R = 0.0821 \, \text{L atm mol}^{-1} \text{K}^{-1} \))

  • A. 2
  • B. 1.5
  • C. 1
  • D. 2.5

Q2. How many grams of CaCl₂ (molar mass = 111 g/mol) are needed to prepare 600 mL of a 0.2 M solution?

  • A. 13 g
  • B. 13.32 g
  • C. 14 g
  • D. 12.5 g

Q3. A solution is prepared by dissolving 20 g of a solute in water to make 400 mL of solution with a density of 1.25 g/mL. If the molarity is 0.5 M, what is the molar mass of the solute?

  • A. 90 g/mol
  • B. 100 g/mol
  • C. 110 g/mol
  • D. 120 g/mol

Q4. A solute dissociates into 3 ions with a van’t Hoff factor of 2.2. What is the degree of dissociation?

  • A. 0.5
  • B. 0.7
  • C. 0.8
  • D. 0.6

Q5. A gas has a Henry’s law constant of 80 bar. If its partial pressure above a solution is 4 bar, what is its mole fraction?

  • A. 0.05
  • B. 0.04
  • C. 0.06
  • D. 0.02

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