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    Chemistry Quiz Grade 7

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    menma fun
    The document contains 15 multiple choice questions about acids and bases, pH levels, solutions and solubility. It tests knowledge about key concepts such as: examples of acids and bases, the pH scale and strong vs weak acids, neutral solutions from mixing acids and bases, indicators for testing acids and bases, the components of solutions, saturated vs unsaturated solutions, and factors that increase the rate of dissolving. The questions cover topics including solubility, mixtures, elements, compounds, and filtration.

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    © All Rights Reserved
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    Chemistry Quiz Grade 7

    Uploaded by

    menma fun
    61 views4 pages
    The document contains 15 multiple choice questions about acids and bases, pH levels, solutions and solubility. It tests knowledge about key concepts such as: examples of acids and bases, the pH scale and strong vs weak acids, neutral solutions from mixing acids and bases, indicators for testing acids and bases, the components of solutions, saturated vs unsaturated solutions, and factors that increase the rate of dissolving. The questions cover topics including solubility, mixtures, elements, compounds, and filtration.

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    Chemistry Quiz Grade 7

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    The document contains 15 multiple choice questions about acids and bases, pH levels, solutions and solubility. It tests knowledge about key concepts such as: examples of acids and bases, the pH scale and strong vs weak acids, neutral solutions from mixing acids and bases, indicators for testing acids and bases, the components of solutions, saturated vs unsaturated solutions, and factors that increase the rate of dissolving. The questions cover topics including solubility, mixtures, elements, compounds, and filtration.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    61 views4 pages

    Chemistry Quiz Grade 7

    Uploaded by

    menma fun
    The document contains 15 multiple choice questions about acids and bases, pH levels, solutions and solubility. It tests knowledge about key concepts such as: examples of acids and bases, the pH scale and strong vs weak acids, neutral solutions from mixing acids and bases, indicators for testing acids and bases, the components of solutions, saturated vs unsaturated solutions, and factors that increase the rate of dissolving. The questions cover topics including solubility, mixtures, elements, compounds, and filtration.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 4

    1. Which of the following is an example of base?

    a. Lemon juice

    b. Vinegar

    c. Soap

    d. Grapes

    Answer: C

    2. An ammonia solution has a ph level of 11. It is an example of

    a. base.

    b. an acid

    c. neutral

    d. a liquid.

    Answer: A

    3. If a distilled water has a pH of 7 it is

    a. a salt

    b. an alkali

    c. an acid

    d. neutral

    Answer: D

    4. A vinegar has a ph level of 2. It is an example of .

    a. strong acid

    b. weak acid

    c. strong base

    d. weak base

    Answer: A
    5. Strong acids has a ph range of .

    a. 0-7

    b. 6-8

    c. 11-15

    d. 0-4

    Answer: D

    6. What will be the result if an acid is mixed with a base of equal strength?

    a. Stronger acid

    b. Stronger base

    c. Neutral solution

    Answer: C

    7. Which of the following statements is true?

    a. Blue litmus paper turns red when placed in a soapy water.

    b. Red litmus paper turns blue when placed in a bleach.

    c. Blue litmus paper stays blue when placed in a vinegar.

    d. Red litmus paper stays red when placed in a milk of magnesia

    Answer: B

    8. This is a part of a solution that dissolves.

    a. Solute

    b. Solvent

    c. Mixture

    Answer: A

    9. It is a solution in which the solute concentration is lower than its equilibrium solubility.

    a. Saturated solution

    b. Unsaturated solution
    c. Supersaturated solution

    Answer: B

    10. Which of the following will increase the rate of dissolving a sugar in a water?

    a. Stirring the solution

    b. Increasing the temperature of the solution

    c. Crushing the sugar

    d. All of the above

    Answer: D

    11. You add a salt to a water in a beaker but the salt did not dissolve. It is an example of a

    a. Saturated solution

    b. Unsaturated solution

    c. Supersaturated solution

    Answer: C

    12. Which of the following is not soluble in water?

    a. Salt

    b. Sugar

    c. Oil

    d. Coffee

    Answer: C

    13. It is the process in which solid particles in a liquid are removed by the use of a medium that permits
    the fluid to pass through but retains the solid particles.

    a. Filtration

    b. Distillation

    c. Using of magnet

    d. Evaporation
    Answer: A

    14. It contains two or more elements or compounds that are not chemically combined.

    a. Mixture

    b. Elements

    c. Compounds

    d. Pure substance

    Answer: A

    15. Which of the following is a way in which elements and compounds are similar?

    a. Elements and compounds are pure substances.

    b. Elements and compounds are both made up of different kinds of atoms.

    c. Elements and compounds can both be broken down by physical means.

    d. Elements and compounds are listed on the periodic table.

    Answer: A

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