NEET Chemistry: Solutions — MCQ Test 11

Q6. A solute dissociates into 2 ions with a van’t Hoff factor of 1.6. What is the degree of dissociation?

Q7. A solution is made by mixing 30 g of a solute (molar mass = 60 g/mol) with water. If the molality is 0.5 mol/kg, what is the total mass of the solution?

Q8. A solution contains 25 g of a solute in 75 g of water. If the mass percentage of the solute is reduced to 20% by adding water, what is the total mass of the new solution?

Q9. The vapor pressure of pure ethanol is 60 mm Hg. What is the vapor pressure of a solution with a solute mole fraction of 0.2?

Q10. A solution contains 20 g of a solute in 80 g of solvent. If the mass percentage is 20%, what is the mass of the solution?

NEET Chemistry — Solutions

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What is the mole fraction of acetone (molar mass = 58 g/mol) in a solution containing 29 g of acetone and 54 g of water?

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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 Fraction, Solution, Containing, Assuming, Complete, and Dissociation.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. What is the mole fraction of acetone (molar mass = 58 g/mol) in a solution containing 29 g of acetone and 54 g of water?

  • A. 0.143
  • B. 0.2
  • C. 0.25
  • D. 0.33

Q2. A 0.25 M solution of MgCl₂ (assuming complete dissociation) has an osmotic pressure of 1.845 atm at a certain temperature. What is the temperature? (\( R = 0.0821 \, \text{L atm mol}^{-1} \text{K}^{-1} \))

  • A. 25 K
  • B. 28 K
  • C. 30 K
  • D. 32 K

Q3. A solution of a non-volatile solute in water boils at 100.39°C at 1 atm. If the solute’s molality is 0.75 mol/kg, what is the value of \( K_b \) for water?

  • A. 0.5 K kg mol\(^{-1}\)
  • B. 0.48 K kg mol\(^{-1}\)
  • C. 0.55 K kg mol\(^{-1}\)
  • D. 0.52 K kg mol\(^{-1}\)

Q4. A solution of two volatile liquids has vapor pressures of 200 mm Hg and 300 mm Hg for pure components. If the mole fraction of the first is 0.7, what is the total vapor pressure?

  • A. 220 mm Hg
  • B. 230 mm Hg
  • C. 240 mm Hg
  • D. 250 mm Hg

Q5. A solution contains 7 g of a solute (molar mass = 140 g/mol) in 350 mL of solution. What is the molarity?

  • A. 0.13 M
  • B. 0.1429 M
  • C. 0.15 M
  • D. 0.1 M

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