Grade 7 Chemistry Academic Year: 2023-2024 Chapter 4 - Solutions
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Questions and Answers

What is the physical state of the solvent in tube 3?

  • Cannot be determined
  • Solid
  • Liquid (correct)
  • Gas

    • In the example of Brass, what is the solvent?

  • Copper (correct)
  • Carbon Dioxide
  • Zinc
  • Oxygen

    • What determines the physical state of a solution?

  • Temperature
  • Gas
  • Solvent (correct)
  • Solute

    • Which of the following is NOT a solid solution?

    <p>Soft drinks</p> Signup and view all the answers

    What is the solvent in tube 6?

    <p>Acetone</p> Signup and view all the answers

    Which tube contains a mixture of solid and gas?

    <p>Tube 5</p> Signup and view all the answers

    What is the key difference between dilute and concentrated solutions?

    <p>The amount of solute present in the solution</p> Signup and view all the answers

    Which of the following factors influences the rate of dissolution of a solid solute in a liquid solvent?

    <p>Temperature, surface area, and stirring</p> Signup and view all the answers

    What distinguishes unsaturated, saturated, and supersaturated solutions from each other?

    <p>The amount of solute dissolved in the solvent</p> Signup and view all the answers

    What role do water, ethanol, and acetone play in the context of solutions?

    <p>They are all solvents</p> Signup and view all the answers

    Why is a mixture of water and mud not considered a solution?

    <p>It does not follow the definition of a solution as a homogeneous mixture</p> Signup and view all the answers

    Why is a mixture of water and blue ink considered a solution?

    <p>The blue ink has dissolved completely in water</p> Signup and view all the answers

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