10th Grade: Can You Pass This Basic Chemistry Test?

10 Questions | Total Attempts: 106

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10th Grade: Can You Pass This Basic Chemistry Test?

Finding out which elements are present in a substance can be useful to scientists in many fields, for example, forensic science, hospitals, and food science. Current methods used by professional scientists for analyzing substances are rapid, extremely accurate, and ultra-sensitive. Take this Chemistry quiz, young Einsteins!


Questions and Answers
  • 1. 
    A reddish brown precipitate results from the reaction between an unknown substance and sodium hydroxide. Which ion is present in the unknown substance?
    • A. 

      Copper 2+

    • B. 

      Iron 2+

    • C. 

      Aluminium 3+

    • D. 

      Iron 3+

  • 2. 
    A titration is used to accurately measure volumes of liquids required to carry out chemical reactions such as neutralisation reactions. Name the long glass tube which is required to carry out a titration.
    • A. 

      Pipette

    • B. 

      Burette

    • C. 

      Clamp stand

    • D. 

      Conical flask

  • 3. 
    The meniscus is the curve in the upper surface of a liquid caused by surface tension. When measuring the amount of liquid held in a burette, which part of the meniscus do you measure from?
    • A. 

      The bottom

    • B. 

      The edge

    • C. 

      The average height

    • D. 

      The top

  • 4. 
    Which of the following compounds would burn yellow in the flame test?
    • A. 

      Sodium chloride

    • B. 

      Calcium chloride

    • C. 

      Potassium chloride

    • D. 

      Barium chloride

  • 5. 
    Which of the following can iodine NOT be used for testing for?
    • A. 

      Presence of carbon dioxide

    • B. 

      Unsaturation of oils

    • C. 

      Presence of starch

    • D. 

      Unsaturation of hydrocarbons

  • 6. 
    Which element produces a green flame when burned in a flame test?
    • A. 

      Lithium

    • B. 

      Sodium

    • C. 

      Potassium

    • D. 

      Barium

  • 7. 
    A white precipitate results from the reaction between an unknown substance and sodium hydroxide. Which ion CANNOT be present in the unknown substance?
    • A. 

      Calcium 2+

    • B. 

      Magnesium 2+

    • C. 

      Aluminium 3+

    • D. 

      Copper 2+

  • 8. 
    Three unknown solutions are added to test tubes of dilute nitric acid and silver nitrate. Each shows a positive result for the test. What ions are present in each tube in order if the colours produced are white, cream and pale yellow?
    • A. 

      Iodide, bromide, chloride

    • B. 

      Chloride, iodide, bromide

    • C. 

      Chloride, bromide, iodide

    • D. 

      Iodide, chloride, bromide

  • 9. 
    A chromatogram is produced in a process called chromatography. There are several types of chromatography. Which of the following is NOT a type of chromatography?
    • A. 

      Gas - liquid

    • B. 

      Gel permeation

    • C. 

      Ion-exchange

    • D. 

      UV-Visible

  • 10. 
    What metal should the wire loop be made of that is holding your unknown compound during a flame test?
    • A. 

      Copper

    • B. 

      Silver

    • C. 

      Gold

    • D. 

      Platinum