11th Grade Chemistry Quiz For Beginners.

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11th Grade Chemistry Quiz For Beginners. - Quiz

Do you know that everything is made out of chemicals? Chemistry is the study of matter. (What it consist o,what it properties are and how its changes). It is a scientific discipline involved with elements and compound composed of atoms, molecules and ions. Try out this chemistry Quiz to test your knowledge of chemistry. Good luck!


Questions and Answers
  • 1. 

    What are chemical properties?

    • A.

      Properties that describes how one substances resembles another

    • B.

      Properties that describes how one chemical mixes with another

    • C.

      Properties that describes how one substance reacts with another substance

    • D.

      Properties that describe the a chemical

    Correct Answer
    C. Properties that describes how one substance reacts with another substance
    Explanation
    Chemical properties refer to the characteristics of a substance that describe how it reacts with other substances. These properties determine the chemical behavior of a substance, such as its ability to undergo chemical reactions, react with acids or bases, or oxidize or reduce. Chemical properties are not related to the physical appearance or composition of a substance, but rather to its chemical composition and reactivity.

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  • 2. 

    Which of the following is not an example of chemical properties?

    • A.

      Flammability

    • B.

      Oxidative states

    • C.

      Reactivity

    • D.

      Density

    Correct Answer
    D. Density
    Explanation
    Density is not an example of chemical properties because it is a physical property that describes the mass of a substance per unit volume. Chemical properties, on the other hand, describe how a substance interacts with other substances and undergoes chemical reactions. Flammability, oxidative states, and reactivity are all examples of chemical properties as they describe the ability of a substance to burn, undergo oxidation, and react with other substances, respectively.

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  • 3. 

    What is physical property of a substance?

    • A.

      Property used to identify and characterized a substance

    • B.

      Property used to shape a substance

    • C.

      Property showing reactivity of a substance

    • D.

      Non of the above

    Correct Answer
    A. Property used to identify and characterized a substance
    Explanation
    A physical property of a substance refers to a characteristic or quality that can be observed or measured without changing the substance's chemical composition. It is used to identify and characterize a substance based on its physical attributes, such as color, density, melting point, boiling point, and conductivity. This helps in distinguishing one substance from another and understanding its behavior under different conditions.

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  • 4. 

    Which of the following is not an example of physical properties

    • A.

      Density

    • B.

      Melting point

    • C.

      Colour

    • D.

      Flammability

    Correct Answer
    D. Flammability
    Explanation
    Flammability is not an example of a physical property because it refers to the ability of a substance to burn or ignite. Physical properties, on the other hand, are characteristics of a substance that can be observed or measured without changing its chemical composition. Density, melting point, and color are all examples of physical properties as they can be determined without altering the substance's chemical makeup.

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  • 5. 

    How do you observe physical properties?

    • A.

      By testing with chemicals

    • B.

      By using your sense or measure with a machine

    • C.

      All of the above

    • D.

      Non of the above

    Correct Answer
    B. By using your sense or measure with a machine
    Explanation
    Physical properties of substances can be observed by using our senses, such as sight, touch, smell, and taste. For example, we can observe the color, texture, and odor of a substance. Additionally, physical properties can also be measured using various instruments and machines, such as thermometers to measure temperature, balances to measure mass, and spectrophotometers to measure the absorption of light. Therefore, the correct answer is "By using your sense or measure with a machine."

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  • 6. 

    How do you observe chemical properties?

    • A.

      By observing the reaction of one chemical with another

    • B.

      By packing all substances together

    • C.

      Non of the above

    • D.

      All.of the above

    Correct Answer
    A. By observing the reaction of one chemical with another
    Explanation
    Chemical properties can be observed by studying the reaction between different chemicals. When two chemicals interact, they may undergo a chemical change, resulting in the formation of new substances or the release of energy. These reactions can provide valuable information about the chemical properties of the substances involved, such as their reactivity, stability, and ability to undergo specific reactions. By carefully observing and analyzing these reactions, scientists can gain insights into the chemical behavior and characteristics of different substances.

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  • 7. 

    Which of the following produces a new substance?

    • A.

      Physical change

    • B.

      Biological change

    • C.

      Chemical change

    • D.

      Histological change

    Correct Answer
    C. Chemical change
    Explanation
    A chemical change refers to a process in which the chemical composition of a substance is altered, resulting in the formation of a new substance with different properties. This can involve the breaking and forming of chemical bonds, resulting in a change in the arrangement of atoms. In contrast, physical changes only affect the physical properties of a substance, such as its shape, size, or state of matter, without altering its chemical composition. Biological changes involve processes within living organisms, but they do not necessarily result in the formation of a new substance. Histological changes refer specifically to changes in the structure and composition of tissues, which also do not involve the formation of a new substance.

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  • 8. 

    Which of the following does not produce a new substance?

    • A.

      Chemical change

    • B.

      Physical change

    • C.

      Histological change

    • D.

      Biological  change

    Correct Answer
    B. Physical change
    Explanation
    A physical change refers to a change in the physical properties of a substance, such as its shape, size, or state of matter, without forming a new substance. In a physical change, the molecules of the substance remain the same, and no chemical bonds are broken or formed. Examples of physical changes include melting, freezing, boiling, and dissolving. Therefore, a physical change does not produce a new substance.

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  • 9. 

    Which of the following is not an example of chemical change?

    • A.

      Burning wood

    • B.

      Rusting iron

    • C.

      Cooking an egg

    • D.

      Boiling water

    Correct Answer
    D. Boiling water
    Explanation
    Boiling water is not an example of a chemical change because it is a physical change. Boiling water involves the phase transition from a liquid to a gas, but the chemical composition of water remains the same. In contrast, burning wood involves a chemical reaction where the wood combines with oxygen to produce heat and light. Rusting iron is also a chemical change as it involves the reaction of iron with oxygen and water to form iron oxide. Cooking an egg is a chemical change as the proteins in the egg undergo denaturation and coagulation, resulting in a different chemical structure.

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  • 10. 

    Which of the following is not an example of physical changes?

    • A.

      Cooking an egg

    • B.

      Crumpling a paper

    • C.

      Boiling water

    • D.

      Melting an ice cube

    Correct Answer
    A. Cooking an egg
    Explanation
    Cooking an egg is not an example of a physical change because it involves a chemical reaction. When an egg is cooked, the heat causes the proteins in the egg to denature and coagulate, resulting in a permanent change in the composition and structure of the egg. This is different from physical changes like crumpling a paper, boiling water, or melting an ice cube, which only alter the physical properties of the substances involved without changing their chemical composition.

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