NEET Chemistry: Solutions — MCQ Test 1

Q6. A solution freezes at -0.558°C. What is the molality if \( K_f = 1.86 \, \text{K kg mol}^{-1} \)?

Q7. A gas follows Henry’s law with a constant of 200 bar. If its solubility in a solvent is 0.015 mol/kg at 3 bar, what is the mass of solvent required to dissolve 0.03 mole of the gas at the same pressure?

Q8. What is the molality of a solution containing 12 g of sucrose (molar mass = 342 g/mol) in 300 g of water?

Q9. What is the molality of a solution prepared by dissolving 15 g of urea (molar mass = 60 g/mol) in 250 g of water?

Q10. The van’t Hoff factor of a 0.08 m CaCl₂ solution is 2.6. What is the boiling point elevation? (\( K_b = 0.52 \, \text{K kg mol}^{-1} \))

NEET Chemistry — Solutions

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What is the mole fraction of water in a solution containing 18 g of water and 46 g of ethanol (molar mass of ethanol = 46 g/mol)?

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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, Freezing, Depression, and Volatile.

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 water in a solution containing 18 g of water and 46 g of ethanol (molar mass of ethanol = 46 g/mol)?

  • A. 0.5
  • B. 0.33
  • C. 0.67
  • D. 1.0

Q2. What is the freezing point depression of a solution containing 9 g of glucose (molar mass = 180 g/mol) in 250 g of water? (\( K_f = 1.86 \, \text{K kg mol}^{-1} \))

  • A. 0.186 K
  • B. 0.372 K
  • C. 0.5 K
  • D. 0.744 K

Q3. A solution of a non-volatile solute in 600 g of water freezes at -0.62°C. If the solute’s molar mass is 62 g/mol, what is the mass of the solute? (\( K_f = 1.86 \, \text{K kg mol}^{-1} \))

  • A. 12 g
  • B. 12.4 g
  • C. 13 g
  • D. 11.5 g

Q4. What is the mass percentage of a solution if 25 g of a solute is dissolved in 225 g of water?

  • A. 8%
  • B. 9%
  • C. 10%
  • D. 11%

Q5. A 0.15 molal solution of a solute in water has a freezing point depression of 0.558°C. If the solute dissociates into 2 ions, what is the degree of dissociation? (\( K_f = 1.86 \, \text{K kg mol}^{-1} \))

  • A. 0.8
  • B. 0.9
  • C. 0.95
  • D. 1

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