Pure Substances And Mixtures Quiz

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  • 1/10 Questions

    Everything is made of...........

    • Matter
    • Water
    • Mixture
    • Solution
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About This Quiz

How much do you know about pure substances and mixtures? Take this informative quiz to increase your chemistry knowledge. In chemistry, a pure substance is either an element or compound, whereas a mixture is a combination of two or more substances. The test below is designed to help you figure out just how well you understood the topic before we go to the lab and carry out experiments. Give it a shot! Remember to share the quiz with your friends! Good Luck!

Pure Substances And Mixtures Quiz - Quiz

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  • 2. 

     The best way to separate salt from a mixture with water is to use...

    • Magnetism

    • Distillation

    • Picking it out

    • Floating

    Correct Answer
    A. Distillation
    Explanation
    To separate salt from sand and water, you have to boil the solution to evapourate the water.

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  • 3. 

    What are the parts that make up a solution? 

    • Solvent and solute

    • Solution and solute

    • Only solvent

    • Solvent and solution

    Correct Answer
    A. Solvent and solute
    Explanation
    A solution is a homogeneous mixture composed of two main components: a solvent and a solute. The solvent is the substance that dissolves the solute, creating a uniform mixture. It is usually present in greater quantity and determines the physical state of the solution. The solute, on the other hand, is the substance being dissolved by the solvent. It is typically present in smaller quantities. Therefore, the correct answer is "solvent and solute."

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  • 4. 

    Increasing the temperature of a solvent...

    • Has no effect on the solute

    • Makes the solute dissolve faster

    • Makes the solute dissolve slower

    • Makes the solute stop dissolving

    Correct Answer
    A. Makes the solute dissolve faster
    Explanation
    Increasing the temperature, adds energy to the particles, so that they move around faster. This means, the solvent and solute particles will mix together faster.

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  • 5. 

    What is another name for a homogeneous mixture?

    • Solution

    • Solvent

    • Colloidal

    • Solute

    Correct Answer
    A. Solution
    Explanation
    A homogeneous mixture is a mixture where the components are evenly distributed throughout, resulting in a uniform composition. In a solution, one substance (the solute) is dissolved in another substance (the solvent) to form a homogeneous mixture. Therefore, solution is another name for a homogeneous mixture.

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  • 6. 

    A solute with a large particle size will dissolve

    • At the same rate as a smaller particle

    • Faster than a smaller particle

    • Slower than a smaller particle

    • Will not dissolve

    Correct Answer
    A. Slower than a smaller particle
    Explanation
    A smaller solute particle dissolves faster than a larger particle (remember the sugar cube and the powdered sugar?)

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  • 7. 

    The building block of matter is

    • Atom

    • Elements

    • Molecules

    • Mixture

    Correct Answer
    A. Atom
    Explanation
    An atom is the fundamental unit of matter. It consists of a nucleus, which contains protons and neutrons, and electrons that orbit around the nucleus. Atoms combine to form elements, which are substances made up of only one type of atom. Molecules, on the other hand, are formed when two or more atoms bond together. A mixture, on the other hand, is a combination of different substances that are not chemically bonded. Therefore, the correct answer is atom because it is the basic building block of matter.

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  • 8. 

    If my hot chocolate is very weak, it is ...........

    • Saturated

    • Concentrated

    • Diluted

    • Supersaturated

    Correct Answer
    A. Diluted
    Explanation
    If the hot chocolate is very weak, it means that there is a large amount of liquid (such as milk or water) compared to the amount of chocolate. This results in a diluted hot chocolate, where the taste and strength of the chocolate flavor is reduced.

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  • 9. 

    Which of the following is an example of a pure substance?

    • Air 

    • Orange juice 

    • Distilled water

    • Salad dressing

    Correct Answer
    A. Distilled water
    Explanation
    Distilled water is a pure substance. It consists of only water molecules, with no other substances or impurities present. It is chemically uniform and has a constant composition throughout.

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  • 10. 

    Which of these are NOT a correct part of Particle Theory. (Check all that you think applies)

    • Temperature changes the speed of particles

    • Particles are ALWAYS moving

    • Only liquids and gas particles move

    • Particles have attraction forces

    • There are no spaces between solid particles

    Correct Answer(s)
    A. Only liquids and gas particles move
    A. There are no spaces between solid particles
    Explanation
    Particles for solids, liquids and gases can all move. There are spaces between ALL particles.

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  • Current Version
  • Mar 25, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 03, 2009
    Quiz Created by
    Chiling
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